Given data
The given equation is
\((x-3)^2=12\)Solving the given equation as
\(\begin{gathered} (x-3)^2=12 \\ x^2+9-6x=12 \\ x^2+9-6x-12=0 \\ x^2-6x-3=0 \end{gathered}\)v= u + at, find v, when u = 12, a = 5 and t = 7
Answer:
V=47
Step-by-step explanation:
12+5x7
12+35
47
Answer:
Final velocity (v) = 47 m/s
Step-by-step explanation:
u = 12
a = 5
t = 7
v = ?
v = u + at (first law of motion)
v = 12 + (5 × 7)
v = 12 + 35
v = 47 m/s.
Anurak has nickels, dimes, and pennies in his pocket. The coins in Anurak's pocket have a total value of 75 cents. He has three more nickels than dimes and five times as many pennies as dimes. How many coins of each type does Anurak have?
Answer:
Anurak has 15 pennies, 6 nickels and 3 dimes.
Step-by-step explanation:
We must have these informations in mind:
1) A penny is a 1-cent coin.
2) A dime is a 10-cent coin.
3) A nickel is a 5-cent coin.
Let be \(x\), \(y\), \(z\) the quantities of pennies, nickels and dimes, respectively. From statement we get that to value in Anurak's pocket is represented by this mathematical expression:
\(0.01\cdot x + 0.05 \cdot y + 0.10\cdot z = 0.75\) (Eq. 1)
In addition, we get the following identities:
i) He has three more nickels than dimes
\(z + 3 = y\) (Eq. 2)
ii) And five times as many pennies as dimes
\(x = 5\cdot z\) (Eq. 3)
The system of linear equations is now reduced: (Eqs. 2, 3) in (Eq. 1)
\(0.05\cdot z +0.05\cdot z + 0.15 + 0.10\cdot z = 0.75\)
\(0.20\cdot z = 0.60\)
\(z = 3\)
The remaining variables are \(y = 6\) and \(x = 15\).
Anurak has 15 pennies, 6 nickels and 3 dimes.
Answer:
Anurak has 15 pennies, 6 nickels and 3 dimes.
Step-by-step explanation:
Find the length of side
x
x in simplest radical form with a rational denominator.
Thanks In advance.
Answer:
Sorry I dont really understand wish I could help:(
Step-by-step explanation:
Answer:
\(\sqrt{10}\)
\(\sqrt{5 } ^{2} + \sqrt{5 } ^{2} = x^{2}\)
\(x^{2} =10\)
Step-by-step explanation:
The price structure in a store is such that, for every $100 of sales, $40 is the cost of the goods sold and $45 goes to overhead costs.
For an item with a wholesale cost of $119, determine:
a. Its selling price. (Round your answer to the nearest cent.)
Selling price $
b. The rate of markup on cost. (Round your answer to one decimal place.)
Rate
%
c. The rate of markup on selling price. (Round your answer to one decimal place.)
1%
Rate
d. The operating profit on the item. (Round your answer to the nearest cent.)
Profit
$
9514 1404 393
Answer:
a. $297.50
b. 150%
c. 60%
d. $14.88
Step-by-step explanation:
We are given that $100 of selling price breaks down to ...
cost: $40
operating profit: $100 -40 -45 - $5
markup: $100 -40 = $60
__
a. The selling price is $100/$40 = 2.5 times the cost.
selling price = 2.5 × $119 = $297.50
__
b. The ratio of markup to cost is ...
markup/cost = $60/40 = 1.5 = 150%
__
c. The ratio of markup to selling price is ...
markup/selling price = $60/$100 = 0.60 = 60%
__
d. The ratio of profit to cost is ...
profit/cost = $5/$40 = 1/8
Then the operating profit on this item is ...
$119 × 1/8 = $14.875 ≈ $14.88
HURRY!!!!!!!!!!!!!!!
The table shows the proportional relationship between the number of tickets required per game at a carnival. Games 4 7 10 Tickets 20 35 50 Determine the constant of proportionality.
Correct answer will get brainiest
Answer:
Therefore, the constant of proportionality for the given proportional relationship is 5.
Step-by-step explanation:
To determine the constant of proportionality in the given proportional relationship, we can use the formula:
Constant of Proportionality = Tickets / Games
Let's plug in the values from the table:
For the first set of values (4 games and 20 tickets):
Constant of Proportionality = 20 / 4 = 5
For the second set of values (7 games and 35 tickets):
Constant of Proportionality = 35 / 7 = 5
For the third set of values (10 games and 50 tickets):
Constant of Proportionality = 50 / 10 = 5
In all three cases, the constant of proportionality is equal to 5.
Therefore, the constant of proportionality for the given proportional relationship is 5.
How many solutions does this system of equations have y = -1/3x + 7. y = -2x^3 + 5x^2 + x - 2
The system of equations has one solution.
How many solutions does this system has?To check this, we can graph the two equations of the system:
y = (-1/3)x + 7
y = -2x³ + 5x² + x - 2
On the same coordinate axis, and check how many times do the graphs intercept.
The graph can be seen in the image at the end, there you can see that there is only one intecept point. Thus, the system of equations has only one solution.
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Evaluate the function at the indicated values. (If an answer is undefined, enter UNDEFINED.)
The values of the functions are k(0) = 0, k(4) = 64, k(-4) = -192, k(1/2) = -3/4, k(a/2) = 2(a/2)^3 - 4(a/2)^2, k(x) = -2x^3 - 4x^2 and k(x^3) = 2x^9 - 4x^6
How to evaluate the function?The function definition is given as:
k(x) = 2x^3 - 4x^2
To calculate the values of the function, we simply substitute the x value and then calculate the function value
Using the above highlight, we have the following computations
k(0) = 2(0)^3 - 4(0)^2
k(0) = 0
k(4) = 2(4)^3 - 4(4)^2
k(0) = 64
k(-4) = 2(-4)^3 - 4(-4)^2
k(-4) = -192
k(1/2) = 2(1/2)^3 - 4(1/2)^2
k(1/2) = -3/4
k(a/2) = 2(a/2)^3 - 4(a/2)^2
k(-x) = 2(-x)^3 - 4(-x)^2
k(-x) = -2x^3 - 4x^2
k(x^3) = 2(x^3)^3 - 4(x^3)^2
k(x^3) = 2x^9 - 4x^6
Hence, the values of the functions are k(0) = 0, k(4) = 64, k(-4) = -192, k(1/2) = -3/4, k(a/2) = 2(a/2)^3 - 4(a/2)^2, k(x) = -2x^3 - 4x^2 and k(x^3) = 2x^9 - 4x^6
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Which situation can be represented by the equation y = 5x?
Answer: answer is 5
Step-by-step explanation:
please help me thank you in advance!
Answer:
x = √6/2
Step-by-step explanation:
Side a = 1.73205 --> √3
Side b = 1.22474 --> √6/2
Side c = 1.22474 --> √6/2
Please help me this is hard
another way to find 4x2x5
Another way to find 4x2x5 is to multiply two of the digits and multiply the last digit with the product of two.
What is multiplication?Multiplication is when you take one number and add it together a number of times. Example: 5 multiplied by 4 = 5 + 5 + 5 + 5 = 20. We took the number 5 and added it together 4 times. This is why multiplication is sometimes called "times".
Given are three numbers multiplied, 4x2x5, we need to find the another way to solve it,
So,
4x2x5 = 40
So, in another method,
Multiply 4 and 2, we get, 8 as product, now multiply the product 8 to the last number 5,
8x5 = 40
Hence, the another way to find 4x2x5 is to multiply two of the digits and multiply the last digit with the product of two.
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The question is incomplete solved for:
Find the another method to solve 4x2x5
(4k² + 8k +2) - (2k + 3)
а. 4k² + 6k + 5
b. 4k²+ 6k - 1
с. 4k²+ 10k +5
d. 4k²+ 6k + 1
Answer:
Step-by-step explanation:
4k^2 + 8k + 2 - 2k - 3
4k^2 + 6k - 1
answer is B
Answer:
[B] 4k²+ 6k - 1
Explanation:
(4k² + 8k + 2) - (2k + 3)
Remove Parenthesis
4k² + 8k + 2 - 2k + 3
-2k + 3: -2k - 3
= 4k² + 8k + 2 - 2k - 3
Simplify
4k² + 8k + 2 - 2k - 3: 4k²+ 6k - 1
= 4k²+ 6k - 1
- PNW
Solve the system of equation using elimination
Answer:
To Solve a System of Equations by Elimination
Write both equations in standard form. ...
Make the coefficients of one variable opposites. ...
Add the equations resulting from Step 2 to eliminate one variable.
Solve for the remaining variable.
Substitute the solution from Step 4 into one of the original equations.
here! ( happy hoildays!)
PLSSSS HELPPP I WILL FIVE BRAINLY!!!!
Answer:
The first box : -4 the second one : 6
Step-by-step explanation:
subtract 7 from 3 for the first box, then add 10 to -4 for the second one.
Which of the following theorems verifies that AKML AOPQ?
The theorem that verifies that the two right angled triangles are similar is HA.
What are similar triangle?Two triangles are said to be similar if the ratio of their corresponding sides and the corresponding angles are equal.
Analysis:
From the diagrams KL = OQ ( hypotenuse)
∠L is equal to ∠Q which are acute.
so the two triangles are similar in hypotenuse and acute angle which is the HA theorem.
In conclusion, the HA theorem verifies that the two triangles are similar.
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$6,000 dollars is invested in two different accounts earning 3% and 5% interest. at the end of one year, the two accounts earned $220 in interest. how much money was invested at 3%
The amount of money is 4000 was invested at 3%.
Let x be the amount of money invested at 3%.
Then, the amount of money invested at 5% is 6000 - x.
The interest earned on the amount invested at 3% is 0.03x.
The interest earned on the amount invested at 5% is 0.05(6000 - x) = 300 - 0.05x.
The total interest earned is given as $220.
So, we can write the equation:
0.03x + (300 - 0.05x) = 220
Simplifying and solving for x, we get:
0.03x + 300 - 0.05x = 220
-0.02x + 300 = 220
-0.02x = -80
x = 4000
Therefore, $4000 was invested at 3%.
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Malcolm has $50 gift card to a local car wash and order is the ultimate car wash each visit is $8.95
The amount cheaper is the car washes Malcolm orders than the car washes Martha's order is $13.
The correct answer choice is option B.
How much cheaper is the car washes Malcolm orders than the car washes Martha's order?Malcolm's gift card = $50.
Cost Malcolm's car wash per visit = $7
Martha's gift card = $180
Cost Martha's car wash per visit = Difference between gift card balance of first and second visit
= $180 - $160
= $20
How cheap is the car washes Malcolm orders than the car washes Martha's order = $20 - $7
= $13
Therefore, Malcolm's car wash is cheaper than Martha's car wash by $13
The complete question is attached in the diagram.
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The radius of a circle is 3 feet. What is the circle's area? Use 3.14 for .
Answer: \(A = 28.26 ft^2\)
Step-by-step explanation:
The formula for the area of a circle is: A = π\(r^2\)
We need to plug in the values from the question into the formula.
r = 3 feetuse 3.14 for π\(A = (3.14)(3)^2\)
A = (3.14)(9)
A = 28.26
Don't forget the units! Since we found the area of the circle, we need to square the units.
\(A = 28.26 ft^{2}\)
POSSIBLE POINTS: 33.33
homeowner collects data about the amount of oil A, in gallons, used to heat the house per month for 5 months and the
verage monthly temperature t, in degrees Fahrenheit, for those months. The scatter plot shows the data. The function
(t) = -1.4t + 96 best fits these data.
=============================================================
Explanation:
Check out the diagram below. I've plotted the regression line A(t) = -1.4t+96 on the same xy grid as the given scatterplot. This line tries to get as close as possible to all of the points.
From here, we plug in each of the temperatures mentioned in the five answer choices (10, 15, 68.5, 55, 0). The outputs form the second column of the table in that same diagram.
For example, if we plugged in t = 10, then,
A(t) = -1.4t+96
A(10) = -1.4(10)+96
A(10) = -14 + 96
A(10) = 82
Telling us that a temperature of 10 degrees F would have a predicted or estimated usage of roughly 82 gallons of oil. This points to choice A being one of the answers.
The other temperature values are handled the same way. Choice B is false because t = 15 does not lead to A(t) = 85. Instead, it's A(15) = 75 meaning it's 10 degrees off the mark.
Choice C is true though. Plugging t = 68.5 into A(t) leads to A(t) = 0.1 which rounds to 0 assuming we're only worried about whole numbers. If your teacher is considering decimal values, then choice C is unfortunately false. For now I'll assume your teacher wants you to round.
If we tried t = 55, then we'd get A(15) = -1.4*55+96 = 19 which is not 5 as we'd want. This rules out choice D.
Lastly, plug in t = 0 to find that A(t) = 96. This leads to choice E being one of the answers.
For the graph attached statements A, C and E are true.
Function that fits the given data in the graph,
A(t) = -1.4t + 96Here, t = temperature in Fahrenheit
A(t) = Oil used in gallons
By substituting the value of 't' in the equation we can get the amount of oil used A(t) to heat the house.
Option A
By substituting t = 10°F,
A(10) = -1.4(10) + 96
= 82 gallons
Therefore, statement is true.
Option B
For t = 15°F,
A(15) = -2.4(15) + 96
= 60 gallons
Statement is False.
Option C
For t = 68.5°F
A(5) = -1.4(68.5) + 96
= 0.1 gallons
≈ 0 gallons
Statement is True.
Option D
For t = 55°F,
A(55) = -1.4(55) + 96
= 19 gallons
Statement is False.
Option E
For t = 0°F
A(0) = -1.4(0) + 96
= 96 gallons
Statement is true.
Therefore, statements given in options A, C and E are True.
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What is the difference between a co-payment and co-insurance?
a. Co-payment refers to two spouses paying for the same coverage, and co-insurance refers to
two spouses receiving the same benefits.
b. A co-payment is a flat fee for each service, and co-insurance is based on a percentage of the
costs incurred.
C. Co-payment is when a group of individuals work to cover each other's medical expenses, and
co-insurance is when an individual has multiple insurance policies from different companies.
d. A co-payment is when an employer helps an employee pay for insurance premiums, and co-
insurance is when an employer helps an employee find better insurance than they could alone.
Answer:
b. A co-payment is a flat fee for each service, and co-insurance is based on a percentage of the costs incurred.
Step-by-step explanation:
A co-payment can be defined as a relatively small fixed amount of money that is required to be paid by a patient (insured) to a service provider such as a health insurer (health maintenance organization-HMO) as medical expenses before receiving any other service. Some examples of co-payment are the payment of $15 for a visiting gynecologist, £5 for prescribed drugs, ¥20 for x-ray etc.
On the other hand, co-insurance can be defined as the amount of money a patient (insured) is required to pay for a claim or covered charge after a deductible have been satisfied and it is typically expressed as a percentage of the costs incurred. It is usually split between the policyholder and the insurer on a 20% to 80% basis.
Hence, the difference between a co-payment and co-insurance is that, co-payment is a flat fee for each service, and co-insurance is based on a percentage of the costs incurred.
Answer:
answer is b :P
Step-by-step explanation:
Devin has a rectangular vegetable garden. He planted tomatoes in section of the garden with an area of 6 square yards. There were 30 square yards remaining for Devin to plant zucchini. Let g represent the total area of the garden. Which equation models the problem? Solve the equation to find the total area of the garden. g =
Answer:
g=30y^2+6y^2
Step-by-step explanation:
30 years left after six were taken
HELP!Write the equation of the line fully simplified slope-intercept form.
Answer:
y=3/5x+1
Step-by-step explanation:
Ingrid spent $36 and had $12 left. What percent of her money did she spend?
36+12=48
36÷48×100=75
answer=75%
sin^4x rewrite the power as a product of two squared terms
sin^4x as a product of two squared terms is sin^2(x) * sin^2(x)
How to rewrite the expression?The sine expression is given as
sin^4x
The above means
sin x raised to the power of 4
This in other words, the expression is represented as
(sin(x))^4
Express 4 as 2 + 2
(sin(x))^(2 + 2)
Apply the law of indices
(sin(x))^2 * (sin(x))^2
This gives
sin^2(x) * sin^2(x)
Hence, sin^4x as a product of two squared terms is sin^2(x) * sin^2(x)
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What is the vertical displacement of the basic graph to produce a graph of
OA Sunits down
B. 2 units down
OC units down
OD
units up
SUBMIT
The vertical displacement is of 2 units down, the correct option is B.
What is the vertical displacement?Remember that for a function f(x), a vertical displacement of N units is written in general form as:
g(x) = f(x) + N
If N > 0, the translation is upwards.
if N < 0, the translation is downwards.
Here we assume that we start with the parent cosine function:
y = cos(x)
And the transformed function is:
y = -2 - cos(x - π)
So we have some transformations, but the vertical translation is of 2 units down. So the correct option is B.
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44% of the group were rested. The group numbered 76. How many were rested?
Rested numbers in group is 33 out of 76.
What is a percentage?A percentage is expressed as a number or ratio that can be expressed as fraction of 100. It is denoted by % symbol.
Total numbers in a group = 76.
44% of them were rested.
That is 44% of 76.
To find how many are rested we have to find the value in numbers.
Convert 44% of 76 to numbers.
For this, it can be written as
\(\frac{44}{100} *76\) = 33.44
Therefore 44% of 76 ≅ 33 numbers.(approximately)
Hence, rested numbers in group is 33.
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is 4/5 greater than or less than 2/3?
Answer:
Yes 4/5 is greater than 2/3
Step-by-step explanation:
Because
4/5 = 0.8
2/3 = 0.667
Then, we compare the two decimal numbers to get the answer.
0.8 is greater than 0.667.
Therefore, 4/5 is greater than 2/3 and the answer to the question "Is 4/5 greater than 2/3?" is yes.
Find the number that when added to 2.2 produces the same result as the difference between 34.5 and 12.3.
Answer:
Let the required number be 'x'.
Then,
x + 2.2 = 34.5 - 12.3
or, x = 34.5 - 12.3 - 2.2
or, x = 20
So, the required number is 20.
Answer:
I know you go to aops...
Step-by-step explanation:
SOMEONE ANSWER BOTH
Answer:
The first one is 17 and the second one is (5, 2)
Is there enough information to prove that the triangles are congruent?
If yes, provide the correct Triangle Congruence Postulate or Theorem and a
congruence statement.
If no, justify your answer.
Please help!!!
Answer:
Skill Tests
With a partner, complete the Skill Tests for the six areas of skill-related fitness and record both your scores and your partner’s scores below. Answer the reflection questions.
My Scores:
Agility – Agility Square Test:
Speed – Stay on Your Toes Test:
Reaction Time – Ready, Set, Go Test:
Balance – Stork Stance Test:
Coordination – Off the Wall Test:
Power – Standing Long Jump Test:
Partner Scores:
Agility – Agility Square Test:
Speed – Stay on Your Toes Test:
Reaction Time – Ready, Set, Go Test:
Balance – Stork Stance Test:
Coordination – Off the Wall Test:
Power – Standing Long Jump Test:
Compare your scores to your partner’s scores. Explain the reason for any differences.
How can improving your balance and coordination affect your performance in sports or recreational activities?
What activity was the most difficult for you to perform? Why?
Describe an activity that could help improve your striking and your reaction time skills.
Select a physical activity or sport that you have never done but would like to try one day. Identify at least one element of skill-related fitness that is important to being successful in this activity.
What power-increasing activities do you need to perform regularly to improve your performance?
Answer:
Yeah, theorem triangle
Step-by-step explanation: