The Robot Factory is a learning center where children can build robots. The project fee per visit is $18, and each hour of time (x) at the factory costs $6. Jesse goes to the Robot Factory one afternoon, and the total charge for his visit is $33. Write and solve and equation to find the number of hours Jesse spent at the Robot Factory.

Answers

Answer 1

Answer:

equation=33=6x+18

Step-by-step explanation:

33=6x+18

-18       -18

15/6=6x/6

15/6=x

2.5 hours at the robot factory


Related Questions

James and Bethany Morrison are celebrating their 10th anniversary by having a reception at a local reception hall. They have budgeted $3,000 for their reception. If the reception hall charges a $80 cleanup fee plus $33 per person, find the
greatest number of people that they may invite and still stay within their budget.
James and Bethany can invite at most people to the reception
(Round down to the nearest whole person)

Answers

Answer:

88 people

Step-by-step explanation:

Start with the equation of

\(3,000\geq 33x+80\)

subtract 80

\(3.000\geq 33x\)

then divide by 33

\(88.48\geq x\)

round down

\(x=88\)


Write an equation for the translation of y=2/x that has the given asymptotes. x=-2 and y=3

Answers

Translation of y=2/x that has the given asymptotes. x=-2 and y=3 will be y = 2 / (x+2) + 3

What is meant by an asymptote of a graph?

An asymptote is a line that a graph of a curve continuously approaches but never crosses. Discover the meaning of asymptotes, read a detailed explanation, and learn about the three different asymptotes: vertical, horizontal, and oblique.

The asymptote(s) of a curve may often be found by looking at the limit of a value when the function is not defined. These points include and the point where the numerator of a rational function equals zero, as well as others.

As, x=-2, the vertical asymptote will be (x+2)

y=3, the horizontal asymptote will be 3.

The equation will be -

y = 2 / (x+2) + 3

To learn more about Asymptotes from given link

https://brainly.com/question/4138300

#SPJ4

Question 1
Quadrilateral EFGH is a scaled copy of quadrilateral ABCD. Select all of the true statements.
12
G
6
D
4
ВС
F

Question 1Quadrilateral EFGH is a scaled copy of quadrilateral ABCD. Select all of the true statements.12G6D4F

Answers

Options:

A. Segment EF is twice as long as segment AB.

B. Segment CD is twice as long as segment FG.

C. The measure of angle HEF is twice the measure of angle DAB.

D. The length of segment EH is 16 units.

E. The measure of angle BCD is the same as the measure of angle GFE.

Answer:

A. Segment EF is twice as long as segment AB.

D. The length of segment EH is 16 units.

Step-by-step explanation:

First, let's find out the scale factor that was used in creating quadrilateral EFGH.

Scale factor = ratio of their corresponding segment length.

Segment GH corresponds with segment CD.

Scale factor = GH/CD = 12/6 = 2.

This means all segments that make up quadrilateral ABCD were increased proportionally to give corresponding segment lengths that make up quadrilateral EFGH.

The size of ABCD would increase, while the shape remains the same. This implies that, the measures of corresponding angles are the same, i.e. m<C = m<G.

The following statements are therefore true:

A. Segment EF is twice as long as segment AB.

AB corresponds to EF. Therefore, AB*scale factor = length of EF

AB*2 = EF

EF is twice the length of AB.

D. The length of segment EH is 16 units.

AD corresponds to EH.

AD*scale factor = length of EH

AD*2 = EH

Given that AD = 8, therefore:

8*2 = EH

16 = EH

EH = 16 units

Draw the cross section when a vertical
plane intersects the vertex and the
shorter edge of the base of the pyramid
shown. What is the area of the cross
section?

Answers

The calculated area of the cross-section is 14 square inches

Drawing the cross section of the shapes

from the question, we have the following parameters that can be used in our computation:

The prism (see attachment 1)

When a vertical plane intersects the vertex and the shorter edge of the base, the shape formed is a triangle with the following dimensions

Base = 7 inches

Height = 4 inches

See attachment 2

So, we have

Area = 1/2 * 7 * 4

Evaluate

Area = 14

Hence, the area of the cross-section is 14 square inches

Read more about cross-section at

https://brainly.com/question/1002860

#SPJ1

Draw the cross section when a verticalplane intersects the vertex and theshorter edge of the base of
Draw the cross section when a verticalplane intersects the vertex and theshorter edge of the base of

is x+5 a facotr of f(x)=x3-4x2+3x+7 explain

Answers

After solving the given equation, the value of variable x is 7/2 so x+5 is not the factor of given equation.

Equation: f(x)=x3-4x*2+3x+7

Is x+5 is a factor of given equation:

Here we have equation or algebric expression to solve to check whether the given condition is correct or not.

Give:

x3-4*2+3x+7= 0

Multiply the monomials

3x- 8x+3x+7= 0

Combine like terms

-2x+7= 0

Rearrange variables to the left side of the equation

-2x= -7

Divide both sides of the equation by the coefficient of variable

x= \(-7/-2\)

Determine the sign for multiplication or division

x= \(7/2\)

The value of x is  \(7/2\).

So x+5 is not a factor of f(x)=x3-4x*2+3x+7.

To know more about monomials visit:

https://brainly.com/question/1983426

#SPJ1

balancing work and school: is there a correlation between how many hours per week a student works outside of school and how many units the student takes in a quarter? a cluster sample of 482 students is chosen.

Answers

Yes, there is a correlation between the number of hours per week a student works outside of school and how many units the student takes in a quarter.

The cluster sample of 482 students is chosen in order to examine the relationship between these two variables. The statistical relationship between two variables is known as correlation.

The correlation coefficient r is used to determine the degree and direction of the correlation between two variables. The correlation coefficient is a numerical value that ranges from -1 to +1.

A negative correlation exists when one variable decreases as the other variable increases. A positive correlation exists when both variables increase or decrease together.

In this case, if the number of hours per week a student works outside of school increases, the number of units the student takes in a quarter may decrease, indicating a negative correlation between the two variables. Similarly, if the number of hours per week a student works outside of school decreases, the number of units the student takes in a quarter may increase, indicating a positive correlation between the two variables.

Know more about correlation here:

https://brainly.com/question/13879362

#SPJ11

For each scenario below, choose the graph that gives the best representation.

(a) A bird of prey leaves the nest to go hunting. It flies for several kilometers away from the nest before stopping to eat. After eating, it continues
flying away from the nest for several more kilometers, looking for more food.

For each scenario below, choose the graph that gives the best representation.(a) A bird of prey leaves

Answers

The graph that gives the best representation of the scenario is: option 1 (A).

Graph of Distance vs TimeA typical graph of distance vs time shows the distance covered as against time.If the graph shows a line that slopes upwards, it implies movement from a spot, if it shows an horizontal line, it implies a rest.

The first graph is the correct one that best represents the scenario because it starts at the point of origin (0, 0), which means the bird covers not distance at zero time when it is still at its nest.

As the bird flies, distance increases with time till it stopped at a point to eat.. This is represented by horizontal line, meaning time increased but distance from the nest remains the same.

The upward slope from the spot represents the further distance the bird is flying in search for more food.

Therefore, the graph that gives the best representation of the scenario is: option 1 (A).

Learn more about distance vs time graph on:

https://brainly.com/question/18655388

What is the solution to this system of equations?

18x - y = - 42

y= (-43x+34)/20

Answers

Answer:

X=-2

Step-by-step explanation:

equation a)

-y=42+18x

equation b)

y= (-43x+34)/20

Solution

42+18x= (-43x+34)/20

20(42+18x)=-43x+34

840+360x = -43x+34

360x+43x=34-840

403x= -806

x= -(806/403)

x= -(2)

x= -2

anyone good at maths who can help me?
brainiest will be given, THANK YOU!!!

anyone good at maths who can help me? brainiest will be given, THANK YOU!!!

Answers

Answer:

Step-by-step explanation:

83% of 408:

83/100 x 408 = 338.64 pounds

41% of 53 :

41/100 x 53 = 0.41 x 53 = 21.73 kg

97% of 345m:

0.97 x 345 = 334.65

please mark brainiest

83% of 408 pounds is 338.64 pounds,41% of 53 kg is 21.73kg, 97% of 345 m is 334.65m

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

We need to find

a)83% of 408 pounds

Firstly we need to convert 83% to decimal by dividing with 100.

83/100=0.83

Now multiply 0.83 with 408

0.83×408=338.64

b)41% of 53 kg

Firstly we need to convert 83% to decimal by dividing with 100.

41/100=0.41

Now multiply 0.41 with 53

0.41×53=21.73

c)97% of 345m

Firstly we need to convert 97% to decimal by dividing with 100.

97/100=0.97

Now multiply 0.97 with 345

0.97×345=334.65m

Hence 83% of 408 pounds is 338.64 pounds,41% of 53 kg is 21.73kg, 97% of 345 m is 334.65m

To learn more on Percentage click:

https://brainly.com/question/28269290

#SPJ2

You have to fill a vase 3/4 full, you have a height of 13in and a radius of 6in how much water would need to be poured in order to fill the vase. Need answer very soon, please

Answers

Answer:

Step-by-step explanation:

At the flower store they told her that the vase should be filled 2/3 for the flowers to last the longest. Her cylinder vase has a radius of 3in and a height of 8in. How much water should Mary pour into the vase? Follow • ... Get the right answer, fast. ... No packages or subscriptions, pay only for the time you need.

Express in the form 1 : n . Give n as a fully simplified fraction. 18 : 27

Answers

Answer:

1: 1.5

Step-by-step explanation:

18 : 27

Divide each side by 18

18/18 : 27/18

1: 1.5

Lisa buys a dozen apples and two oranges. Jeremy buys six apples. Oranges cost $1 each, and they spend $11 total. How could you define variables to find the cost of the apples and oranges?

Answers

Answer:

3

Step-by-step explanation:

I just answered that one on a quiz

well the cost of an orange is $1 (as stated) and the cost of an apple is $0.5 or 50 cents

this is because 18 apples + 2 oranges = $11

the question says each orange is $1, therefore 2 oranges are $2

$11-$2= $9

the 9$ which is remaining is spent on the 18 apples... each apple should be at equal price ..

meaning you just go $9 divided by 18= 0.5
0.5 is 50 cents

that is just a solution to the price of the apples and oranges, i’m not sure if that ‘defines the variables’ tho?? you could call apples the x value and do

x + 2 = 11

take 2 on both sides

x= 11-2
x=9

9 is the total amount spent on apples but

9/18= 0.5

since 18 is the total number of apples bought !

i don’t know if this is correct.. please check the answers to confirm my solution :) good luck!



btw it’s 18 apples
because a dozen = 12
+ Jeremy’s 6 apples:
12+6= 18!!!

Reasoning with Functions.

The following graph shows the value of a car t years after purchase.
See screenshots of the questions.

Reasoning with Functions.The following graph shows the value of a car t years after purchase.See screenshots
Reasoning with Functions.The following graph shows the value of a car t years after purchase.See screenshots

Answers

The graphs shows an increase growth I assume so from there it will be the first option

Give two major differences between the mean and median as measures of the center of the distribution.

Answers

The mean is calculated by summing up all the values in the distribution and dividing it by the total number of values, while the median is the middle value when the data is arranged in ascending or descending order.

Another difference is that the mean is affected by outliers, meaning that extreme values can greatly influence its value. On the other hand, the median is not affected by outliers, as it only depends on the position of the middle value.

Therefore, to summarize, the mean is influenced by all values in the distribution and is affected by outliers, while the median is only influenced by the middle value and is not affected by outliers.

Read more about Mean at https://brainly.com/question/31101410

#SPJ11

what does it mean to round to the nearest cent

Answers

Answer:

wrong - $32.547

right - $325.47

Step-by-step explanation:

Basically, if the number in the tens place (145) is 5 or higher the nearest would be the next ten or hundred up, if lower than 5 it goes back down.

Rounding cents is basically the same. as rounding Example:

$14.345

(This is not a vaild amount of money because once you reach a hundred cents you have another dollar. So you will move the decimal point over to the left.)

$143.45

More examples:

incorrect - $23.8678

correct - $2386.78

incorrect - $89.264

correct - $892.64

Rounding is something like rounding to the nearest ten or hundred here's an example:

14 to the nearest ten is 10

16 to the nearest ten is 20

284 to the nearest hundred is 300

104 to the nearest hundred is 100

(Hope this helps. Sorry if this confused you further)

An object was launched off the top of a building. The function f(x)=-16x^2+16x+672 represents the height of the object above the ground, in feet, x seconds after being launched. Find and interpret the given function values and determine an appropriate domain for the function.

Answers

Answer:

6x2 + 16x = 672

Reorder the terms:

16x + 16x2 = 672

Solving

16x + 16x2 = 672

Solving for variable 'x'.

Reorder the terms:

-672 + 16x + 16x2 = 672 + -672

Combine like terms: 672 + -672 = 0

-672 + 16x + 16x2 = 0

Factor out the Greatest Common Factor (GCF), '16'.

16(-42 + x + x2) = 0

Factor a trinomial.

16((-7 + -1x)(6 + -1x)) = 0

Ignore the factor 16.

Subproblem 1

Set the factor '(-7 + -1x)' equal to zero and attempt to solve:

Simplifying

-7 + -1x = 0

Solving

-7 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '7' to each side of the equation.

-7 + 7 + -1x = 0 + 7

Combine like terms: -7 + 7 = 0

0 + -1x = 0 + 7

-1x = 0 + 7

Combine like terms: 0 + 7 = 7

-1x = 7

Divide each side by '-1'.

x = -7

Simplifying

x = -7

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve:

Simplifying

6 + -1x = 0

Solving

6 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-6' to each side of the equation.

6 + -6 + -1x = 0 + -6

Combine like terms: 6 + -6 = 0

0 + -1x = 0 + -6

-1x = 0 + -6

Combine like terms: 0 + -6 = -6

-1x = -6

Divide each side by '-1'.

x = 6

Simplifying

x = 6

Solution

x = {-7, 6}

Step-by-step explanation:

The given quadratic function models the projectile of the object as it is

launched off the top of the building.

The interpretation of the function values are;

The maximum height reached by the object is 676 feetThe height of the building is 672 feetTime of flight of the object is 7 seconds

The appropriate domain is 0 ≤ x ≤ 7

Reasons:

The given function for the height of the object is f(x) = -16·x² + 16·x + 672

The domain is given by the values of x for which the value of y ≥ 0

Therefore, when -16·x² + 16·x + 672 = 0, we get;

-16·x² + 16·x + 672 = 0

16·(-x² + x + 42) = 0

-x² + x + 42 = 0

x² - x - 42 = 0

(x - 7)·(x + 6) = 0

x = 7, or x = -6

The minimum value of time, x is 0, which is the x-value at the top of the

building, and when x = 7, the object is on the ground.

Therefore;

The appropriate domain is 0 ≤ x ≤ 7

The maximum value of f(x) = a·x² + b·x + c, is given at \(x = -\dfrac{b}{2 \cdot a}\)

Therefore;

We have;

\(x = -\dfrac{16}{2 \times (-16)} = \dfrac{1}{2}\)

Which gives;

\(f \left(\frac{1}{2} \right) = -16 \times \left(\dfrac{1}{2} \right)^2 + 16 \times \left(\dfrac{1}{2} \right)+ 672 = 676\)

The maximum height reached by the object, \(f\left(\frac{1}{2} \right)\) = 676 feet

The height of the building is given when the time, x = 0, as follows;

Height of building, f(0) = -16 × 0² + 16 × 0 + 672 = 672

The height of the building, f(0) = 672 feet

Learn more here;

https://brainly.com/question/10837575

Find the volume of the cone. Round your answer to the nearest tenth.

Find the volume of the cone. Round your answer to the nearest tenth.

Answers

I don’t know this sorry

Answer: 56.6

Step-by-step explanation:

You find the volume by V=1/3hπr² , it becomes 56.55 . you round that to the nearest ten then it leads you to 56.6

PLEASE HELP ME I DONT UNDERSTAND

PLEASE HELP ME I DONT UNDERSTAND

Answers

Answer:

c = \(\frac{1}{4}\)

Step-by-step explanation:

using the rules of exponents

\(a^{m}\) × \(a^{n}\) = \(a^{(m + n)}\)

\(a^{-m}\) = \(\frac{1}{a^{m} }\)

then

\(2^{-4}\) × 2² = \(2^{(-4+2)}\) = \(2^{-2}\) = \(\frac{1}{2^{2} }\) = \(\frac{1}{4}\) = c

erika wants at least 6 kilograms of apples for a recipe. she picks a 2.56-kilogram bag of red apples, a 1.18 kilogram bag of green apples, and a 2.79 kilogram bag of yellow apples

Answers

Erika has 6.53 kilograms of apples, which is more than the 6 kilograms she needed for the recipe. Therefore, she has enough apples to make the recipe.

To determine if Erika has at least 6 kilograms of apples, we need to add the weight of all three bags of apples. The total weight of the apples is:

2.56 kg + 1.18 kg + 2.79 kg = 6.53 kg

Erika needs a certain amount of apples for a recipe, specifically 6 kilograms. She goes to the store and picks three different bags of apples - a 2.56-kilogram bag of red apples, a 1.18-kilogram bag of green apples, and a 2.79-kilogram bag of yellow apples. To determine if she has enough apples, she needs to add the weight of all three bags. The total weight of the apples comes out to be 6.53 kilograms. This means that Erika has more than the required 6 kilograms of apples and is sufficient to make the recipe. It's important to note that Erika has an excess of apples, which can be helpful in case she needs extra for the recipe or for future use. The combination of different types of apples can also add variety and flavor to the recipe.

Learn more about mathematics here: brainly.com/question/24600056

#SPJ4

Solve for x.
6x = - 48

Answers

the answer is x = -8

Answer:

-8

Step-by-step explanation:

since x=1 its just really 6/6=1 so you do -48/6 and you get negative 8 because a negative divided by a positive is a negative.

As of today, the spot exchange rate is €1.00 - $1.25 and the rates of inflation expected to prevail for the next three years in the U.S. is 2 percent and 3 percent in the euro zone. What spot exchange rate should prevail three years from now? O $1.00 - €1.2623 €1.00 - $1.2139 O €1.00 $0.9903 O €1.00 - $1.2379

Answers

The spot exchange rate that should prevail three years from now, considering the expected inflation rates, is €1.00 - $1.2379.

To determine the spot exchange rate three years in the future, we need to account for the inflation rates in both the U.S. and the euro zone. Inflation erodes the purchasing power of a currency over time. Given that the U.S. is expected to have an inflation rate of 2 percent and the euro zone is expected to have an inflation rate of 3 percent, the euro is likely to depreciate relative to the U.S. dollar.

The inflation differential between the two regions implies that the euro will experience higher inflation compared to the U.S. dollar. As a result, the purchasing power of the euro will decline, leading to a decrease in its value relative to the U.S. dollar. Consequently, the spot exchange rate of €1.00 - $1.25 is expected to change in favor of the U.S. dollar.

To calculate the future spot exchange rate, we can multiply the current exchange rate by the ratio of the expected purchasing power parity (PPP) values of the two currencies after accounting for inflation. Considering the inflation rates, the future spot exchange rate is €1.00 - $1.2379, indicating a decrease in the value of the euro against the U.S. dollar.

Learn more about rate here:

https://brainly.com/question/9679262

#SPJ11

the simplex lp solving method uses geometric progression to solve problems.T/F

Answers

The answer is True. The simplex method is an algorithm used to solve linear programming problems. It is an iterative process that identifies the optimal solution by moving along the vertices of the feasible region, which is defined by the constraint equations in the problem.


The simplex LP solving method is a popular algorithm used to solve linear programming problems. It uses a geometric progression approach to find the optimal solution by iteratively moving from one vertex of the feasible region to another until the optimal vertex is reached. This involves analyzing the objective function and constraints to determine the direction of movement towards the optimal solution. Therefore, it can be said that the simplex LP solving method uses geometric progression to solve problems.

In contrast, geometric progression is a sequence of numbers where each term is found by multiplying the previous term by a fixed, non-zero number called the common ratio. It is not directly related to the simplex method or linear programming.

To know more about algorithm visit:-

https://brainly.com/question/25395113

#SPJ11

Write and equation of the line that passes through the pair of points (4,6) and (-1,1)

Answers

Answer:

y = x + 2

Step-by-step explanation:

Step 1: Find the slope

\(m=\frac{y2-y1}{x2-x1} = \frac{6-1}{4-(-1)}=\frac{6}{6} =1\)

Step 2: Substitute the slope and a point in to find y intercept

(6)=(1)(4)+b

6 = 4 + b

b = 2

Step 3: Substitute all the information in

y = x + 2

Therefore the equation for a line that passes through (4,6) and (-1,1) is y = x + 2

The answer is y=x+2 . The slope is m=1. And the y intercept is b=2

1. The two graphs show models characterized by exponential decay representing the
area covered by two different algae blooms, in square yards, w weeks after different
chemicals were applied.

Answers

The algae bloom that is covered a larger area when the chemicals were applied is the red arrow.

The algae population that is decreasing more rapidly is the blue dot.

What is a population?

A population in statistics is a group of comparable objects or occurrences that are relevant to a particular topic or experiment.

A statistical population can be a collection of real things or a hypothetical, possibly limitless collection of objects derived from experience.

It should be noted that the red arrow represents a larger area that is covered by algae.

Learn more about population on;

https://brainly.com/question/25630111

#SPJ1

Liam buys 8 bottles of cranberry juice at the corner store for a total cost of $3.92. Assume each bottle of juice is the same price. If c represents the total cost in dollars and cents of the juice for any number, j, of bottles of juice, write a proportional equation for c in terms of j that matches the context.

Answers

Answer: So if C is equal to the total cost and J to the number of bottles, 8 j would equal 31.36 c.

A doctor gave his patient liquid medicine and told him to drink 85 cups over the next 10 days. How much should the patient drink each day

Answers

Answer:

8.5 cups per day

Step-by-step explanation: The answer is very simple. 85/10 equals 8.5 cups per day! Good Luck! Stay Brainy!

the president of a university claimed that the entering class this year appeared to be larger than the entering class from previous years but their mean sat score is lower than previous years. he took a sample of 30 of this year's entering students and found that their mean sat score is 1,501 with a standard deviation of 53. the university's record indicates that the mean sat score for entering students from previous years is $1,520. he wants to find out if his claim is supported by the evidence at a 5% significance level. which of the following best describes a type i error? the president concludes that the mean sat score of the entering students is lower than previous years when it is indeed not lower the president concludes that the mean sat score of the entering students is higher than previous years when it is indeed higher the president concludes that the mean sat score of the entering students is not lower than previous years when it is indeed lower the president concludes that the mean sat score of the entering students is lower than previous years when it is indeed lower

Answers

The result is not statistically significant.

To test the hypothesis is the mean SAT score is less than 1520 at 5% significance level.

The null hypothesis is

H₀ : μ ≥ 1520

The alternative hypothesis is

Hₐ : μ ≤ 1520

then the test statistic is,

t = (x - μ)/(s/√n)

 = (1501 - 1520)/(53/√20)

t = - 1.603

The t-test statistic is - 1.603.

Degree of freedom n - 1 = 20 - 1 = 19

Hence the t-critical value is -1.792.

The conclusion is that the t value corresponds to sample statistics is not fall in the critical region, so the null hypothesis is not rejected at 5% level of significance. There is insignificance evidence indicates that the mean SAT score is less than 1520.

The result is not statistically significant.

To know more about mean score here

https://brainly.com/question/16907497

#SPJ4

Neegan paddles a kayak 21 miles upstream in 4.2 hours. the return trip downstream takes him 3 hours. what is the rate that neegan paddles in still water? what is the rate of the current?

Answers

The speed of Neegan paddles in still water will be 6 miles/Hr, while the rate of the current will be 1 mile/Hr.

Neegan paddles a kayak 21 miles upstream in 4.2 hours.

As he is moving in Upstream, so during returning the flow will be downstream

Downstream refers to the direction of the flow's termination, which is at the other end of the canal from the source. You are travelling upstream, for instance, if you are sailing from Kingston to Toronto. You are travelling downstream if you are moving from Kingston to Cornwall.

Let the speed of Neegan paddles in still water = x miles/Hr.

Let the rate of the current be = y miles/Hr.

As Speed = Distance/Time

So, for Upstream speed, Speed will be = x-y

For downstream, the speed will be = x+y

From question,

(x-y) = 21/4.2 = 5-----(i)

(x+y)= 21/3 = 7 -----(ii)

Solving (i) and (ii)

2x = 12

=> x = 6

So, the value of y (From (i), will be = (x-5) = 6-5 = 1

For more questions on Speed of Boat

https://brainly.com/question/26954668

#SPJ4

Solve (2x + 5)² – 7 = 0 using extracting the square root.​

Answers

Answer: x = \(\frac{ \sqrt{7}-5}{2}\)

              x = \(\frac{ -\sqrt{7}-5}{2}\)

Step-by-step explanation:

\((2x + 5)^{2} - 7 = 0\)

Add 7 to both sides of the equation.

\((2x + 5)^{2} - 7 + 7= 0 + 7\)

Subtracting 7 from itself leaves 0.

\((2x + 5)x^{2} =7\)

Take the square root of both sides of the equation.

\(2x + 5 = \sqrt{7} \\2x + 5 = -\sqrt{7}\)

Subtract 5 from both sides of the equation.

\(2x + 5 - 5 = \sqrt{7} - 5 \\2x + 5 - 5 = - \sqrt{7} - 5\)

Subtracting 5 from itself leaves 0.

\(2x = \sqrt{7} - 5 \\2x = - \sqrt{7} - 5\)

Subtract 5 from \(\sqrt{7}\).

\(2x = \sqrt{7} - 5\)

Subtract 5 from \(-\sqrt{7}\).

\(2x = -\sqrt{7} - 5\)

Divide both sides by 2.

\(\frac{2x}{2} =\frac{ \sqrt{7}-5}{2} \\\frac{2x}{2} =\frac{- \sqrt{7}-5}{2}\)

Dividing by 2 undoes the multiplication by 2.

\(x=\frac{ \sqrt{7}-5}{2}\\x=\frac{ -\sqrt{7}-5}{2}\)

A piece of construction equipment was bought 3 years ago for $ 500,000, expected life of 8 years and a salvage value of $20,000. The annual operating cost for this equipment is $58,000. It now can be sold for $200,000. An alternative piece of equipment can now be bought for $ 600,000, a salvage value of $150,000 and an expected life of 10 years. The annual operating cost for this equipment is $15,000. At MARR= 10% should we replace the old equipment? Use both EAC and P.W. Replace/Not replace

Answers

The required answer is considering both the EAC and P.W., it is recommended to replace the old equipment with the new equipment.

Given that:

For the old equipment:

Cost = $500,000

Annual Operating Cost = $58,000

Salvage Value = $20,000

Life = 8 years

For the new equipment:

Cost = $600,000

Annual Operating Cost = $15,000

Salvage Value = $150,000

Life = 10 years

To determine whether to replace the old equipment, we can compare the Equivalent Annual Cost (EAC) and Present Worth (P.W.) of both options.

Calculate the EAC and P.W. for both options and compare them.

Calculate EAC:

EAC = Cost + Annual Operating Cost - Salvage Value / Life

For the old equipment:

EAC (old) = $500,000 + $58,000 - $20,000 / 8

EAC (old) = $63,500

For the new equipment:

EAC (new) = $600,000 + $15,000 - $150,000 / 10

EAC (new) = $48,500

Calculate P.W. at MARR (Minimum Attractive Rate of Return) of 10%:

P.W. = -Cost + Annual Operating Cost - Salvage Value / (1+MARR)^Life

For the old equipment:

P.W. (old) = -$500,000 + $58,000 - $20,000 / (1+0.10)^8

P.W. (old) = $157,273.22

For the new equipment:

P.W. (new) = -$600,000 + $15,000 - $150,000 / (1+0.10)^10

P.W. (new) = $167,777.05

Based on the calculations, the EAC for the new equipment is lower than the EAC for the old equipment. Additionally, the P.W. for the new equipment is slightly higher than the P.W. for the old equipment.

Therefore, considering both the EAC and P.W., it is recommended to replace the old equipment with the new equipment.

Learn more about capital budgeting techniques, click here:

https://brainly.com/question/14496517

#SPJ4

Other Questions
what is the radius of a circle with an area of 212 in squared. please please simplify for me.... Which of the following is not true of political machines The phagocytic antigen-presenting cells belong to the ________ group. The article quotes Gandhis famous statement: With this, I am shaking the foundations of the British empire. What did Gandhi mean by foundations? How was he shaking the foundations of the empire? How does the narrator's view of Maxwell change over time? Why Did the Mongol Empire Grow?1. Explain, in your own words, how climate influenced the expansion of the Mongolian Empire. Inyour response you must include the following words: weather, grass, animals, surplus. a particle is moving with the given data. find the position of the particle. a(t) = cos(t) sin(t), s(0) = 2, v(0) = 1 The perimeter of a rectangle is 158 cm. If the length is 7 more than 3 times the width:i)Write an equation for the length (l) in terms of the width (w).Use your understanding of simultaneous equations to determine the unknowndimensions.Find the area of the rectangle. Why have there been relatively few constitutional amendments?Choose 1 answer:Choose 1 answer:(Choice A)AOnce a Constitution Amendment Bill is proposed there is 6 months time limit for approval(Choice B)BA Constitution Amendment Bill requires more than a simple majority to be ratified(Choice C)CThey must be approved by both the Supreme Court and the President(Choice D)DThey must be voted on as a referendum in three-fourths state legislatures Please Help Im in a test!!!!!What is the slope of the line that passes through the points (-8, 3) and (-8, 5)?(A) 0(B) 1/8(C) 2(D) undefined Una botella tena agua hasta de su capacidad. Luego, se agreg litro de agua y la botella qued llena. Si x representa la capacidad total de la botella en litros, cul de las siguientes ecuaciones modela esta situacin? PLEASE HURRY!!!!When the 1905 Sequoyah Convention ratified their state constitution and submitted it to Congress, Congress chose to ignore it. Do you feel this was the right decision? If you had been a member of Congress in 1905, would you have voted to ratify the Sequoyah Constitution, voted against it, or tried to have it tabled? Defend your choice. In which situation would a space probe most likely experience centripetal acceleration?as it revolves around a planetas it flies straight past a moon as it is pulled in a line toward the Sunas it lifts off from Earth How many countries make up North America? In a 7 sentences, discuss how both different features of physical geography, and cultural geography have contributed to the Russian population being concentrated where it is. Prepare the direct labor budget for this product line by quarter and in total for 2020. CURRENT DESIGNS Direct labor Budget More skilled labor Q1 Q2 $ $ $ $ $ $ Less skilled labor Q1 Q2 $ $ $ $ $ $ $ Prepare the direct labor budget for this product line by quarter and in total for 2020. CURRENT DESIGNS Direct labor Budget Q2 Q3 04 TOTAL $ ta $ $ $ $ $ $ Q2 Q3 Q4 TOTAL $ $ $ $ $ $ $ $ $ $ $ Peggy invests $8, 400 at 6 1/2% interest for 10 years compounded semiannually. Find the amount of money in the account at the end of the term. Pls answer what hasnt been answered yet. A,b & c Organisms contain different levels of organization within their bodies. Arachnoidiscus ehrenbergi, pictured below, is a single-celled organism that is part of the group of algae known as diatoms. A microscopic image of Arachnoidiscus ehrenbergi. Photo by Gordon T. Taylor, courtesy of the NOAA Which level of organization is seen in both Arachnoidiscus ehrenbergi and the human stomach? cell tissue organ organ system Mark this and return Napoleons failed invasion of led other states to attack the weakened French army.