A man starts walking north at 5 ft/s from a point P. Five minutes later a woman starts walking south at 7 ft/s from a point 500 ft due east of P. At what rate are the people moving apart 15 min after the woman starts walking? (Round your answer to two decimal places.) ft/s

Answers

Answer 1

Rate at which the people moving apart 15 min after the woman starts walking is 22.214 ft/sec.

Given, Speed of man = 5ft/sec

A man walks at 5ft/sec .

5 minutes = 300 seconds
Speed of woman = 7ft/sec.

Distance covered by woman = 900 ×7

= 6300ft.

Distance covered by man in 15 minutes = 900 × 5

= 4500ft.

Total distance covered by the man = 900 + 4500 + 6300
= 11700ft.

Total distance covered by the woman = 6300ft

(900 + x+ y)² + 500² = z²

x = 4500ft

y = 6300ft

Put the values,

(900 + 4500 + 6300)² + 500² = z²

z = 6320.23

Differentiate  (900 + x+ y)² + 500² = z² with respect to z,

\(2z\frac{dz}{dt} = 2(900 + x + y)(dx/dt + dy/dt)\)

\(\frac{dz}{dt} = (900 + 4500 + 6300)(5 + 7)/ 6320.23\\\frac{dz}{dt} = 22.214 ft/sec\)

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Related Questions

The first steps in writing f(x) = 4x2 + 48x + 10 in vertex form are shown. f(x) = 4(x2 + 12x) + 10 (twelve-halves) squared = 36 What is the function written in vertex form?

Answers

Answer:

\(f(x)=4(x+6)^2-134\)

Step-by-step explanation:

We are required to write the function\(f(x) = 4x^2 + 48x + 10\) in vertex form.

First, bring the constant to the left-hand side.

\(f(x) -10= 4x^2 + 48x\)

Factorize the right hand side.

\(f(x) -10= 4(x^2 + 12x)\)

Take note of the factored term(4) and write it in the form below.

\(f(x) -10+4\Box= 4(x^2 + 12x+\Box)\)

\(\Box = (\frac{\text{Coefficient of x}}{2} )^2\\\\\text{Coefficient of x}=12\\\\\Box = (\frac{12}{2} )^2 =6^2=36\)

Substitute 36 for the boxes.

\(f(x) -10+4\boxed{36}= 4(x^2 + 12x+\boxed{36})\)

\(f(x) -10+144= 4(x^2 + 12x+6^2)\)

\(f(x) +134= 4(x+6)^2\\f(x)=4(x+6)^2-134\)

The function written in vertex form is \(f(x)=4(x+6)^2-134\)

Answer:

C

Step-by-step explanation:

I just finished the unit test on Edge. and got a 100% and I selected "c" as my answer.

what is the value of x in the equation 0.3x = 0.2 - 0.2x?

Answers

Hey there!

0.3x=0.2−0.2x

Step 1: Simplify both sides of the equation.

0.3x=0.2−0.2x

0.3x=0.2+−0.2x

0.3x=−0.2x+0.2

Step 2: Add 0.2x to both sides.

0.3x+0.2x=−0.2x+0.2+0.2x

0.5x=0.2

Step 3: Divide both sides by 0.5.

0.5x/0.5=0.2/0.5

x=0.4

Therefore, x = 0.4

can anyone identify the center & radius of these

can anyone identify the center & radius of these

Answers

Answer:

43 is the answer to your question

An automobile travels 415 miles on 16 2/3 gallons of gasoline.

a) How many miles per gallon does the car get on the trip? (Enter your answer as a simplified mixed number.)


b) How many gallons would be required for the car to travel 498 miles?

Answers

A. 24.9 mpg
B. 20 gallons

The same honey is sold in 2 different size jars. Large jar=540 for £4.10 small jar= 360 for £2.81 which jar is the best value for money?

Answers

The large jar has better value for money than the smaller one.

Which jar is the best value for money?

To see which jar is the best value for the money, we need to take the quotient between the cost of each jar and the size. The smaller that value gets, the best value we have.

For the first jar we have:

q = £4.10/540 = 0.0075

For the second jar we have:

q' = £2.81/360 = 0.0078

Then we can see that the large jar has the best value for money.

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Need answer for this

Need answer for this

Answers

6 ÷ [ 3 × (5 - 3) ÷ (4² + 3) ] ÷ 2

= 6 ÷ [ 3 × 2 ÷ 19 ] ÷ 2

= 6 ÷ 6/19 ÷  2

= 19/2

= 8.5

Ok done. Thank to me :>

11/40 fraction into a decimal

Answers

Answer:

0.275 is the answer for this question.

I’m pretty sure the answer is 0.275

one third plus four sixths plus six eighteenths equals blank

Answers

Answer:

1 1/3

Step-by-step explanation:

one third plus four sixths plus six eighteenths equals blank

Answer:

7/6

Step-by-step explanation:

1/3+4/8+6/18=7/6

In a survey, people were asked whether they like baseball or whether they like hockey. Here are the results: Likes hockey Doesn’t like hockey Likes baseball 12 18 Doesn’t like baseball 14 6 What value is missing to convert the two-way table to a two-way relative frequency table? Likes hockey Doesn’t like hockey Likes baseball 0.24 0.36 Doesn’t like baseball 0.28

Answers

The missing value 'x' in the two-way relative frequency table is 0.36.

To convert the two-way table to a two-way relative frequency table, we need to calculate the relative frequencies for each category. Relative frequency is calculated by dividing the frequency of a particular category by the total count in that row or column.

Let's denote the missing value as 'x'. To find the value of 'x', we need to ensure that the sum of the relative frequencies in each row and each column adds up to 1.

First, let's calculate the relative frequencies for each category:

Likes hockey: The total count in this row is 12 + 18 = 30.

Relative frequency of "Likes hockey" = 12/30 = 0.4

Relative frequency of "Doesn't like hockey" = 18/30 = 0.6

Likes baseball: The total count in this column is 12 + 14 = 26.

Relative frequency of "Likes baseball" = 12/26 ≈ 0.4615

Relative frequency of "Doesn't like baseball" = 14/26 ≈ 0.5385

To ensure that the relative frequencies add up to 1, we can set up the following equations:

0.4 + x = 1 (sum of relative frequencies in the "Likes hockey" row)

0.4615 + 0.5385 + x = 1 (sum of relative frequencies in the "Likes baseball" column)

Simplifying the equations, we have:

x = 0.6 (1 - 0.4) = 0.6 * 0.6 = 0.36

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Find the x-intercepts of the graph.
20
X =
10
y
2
4
y=-3x² + 14x + 5
], x=
X
X

Find the x-intercepts of the graph.20X =10y24y=-3x + 14x + 5], x=XX

Answers

The x-intercept of the function is (-1/3, 0) and (5, 0)

Given is a graph of a parabola having equation y = -3x²+14x+5, we need to find the x-intercept of the graph,

So to find the x-intercept put y = 0,

Therefore,

-3x²+14x+5 = 0

-3x²+15x-x+5 = 0

-3x(x-5)-1(x-5) = 0

(-3x-1)(x-5) = 0

Therefore,

x = -1/3 and x = 5

Hence the x-intercept of the function is (-1/3, 0) and (5, 0)

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Find the x-intercepts of the graph.20X =10y24y=-3x + 14x + 5], x=XX

Jalla's hourly wage is $27.932. Round her salary to the nearest cent.

Answers

$28, I hope this is the answer if not I’m dearly sorry

how to divide −6x2−3x+12 by 3x−3.

Answers

solve  -6x2-3x+12 dived by 3x-3 using pemdas

Step-by-step explanation:

The question is how to divide this this is how to solve it

Let A, B, C be three points with position vectors a, b, c respectively. You may assume that the three points A, B, C do not all lie on the same straight line. Let D, E, F be the midpoints of the line-segments BC, AC, AB respectively. What is the point with position vector 1/3 (a+b+c)?

Answers

The midpoint of three points with the position vector 1/3(a + b + c) is given by:

P = (b + c - B - C) / 2 + (1/3)(b + c)

The point with the position vector 1/3(a + b + c) is given by:

P = F - (2/3)D - (1/3)E + (1/3)(b + c)

To find the point with the position vector 1/3(a+b+c), we can use the fact that the position vector of a point that divides a line segment in a given ratio can be found by taking the weighted average of the position vectors of the endpoints.

Given that D, E, and F are the midpoints of line segments BC, AC, and AB, respectively, we know that:

D = (B + C) / 2

E = (A + C) / 2

F = (A + B) / 2

To find the point with the position vector 1/3(a+b+c), we can substitute a = 3F - 2D - E into the equation:

1/3(a + b + c) = 1/3((3F - 2D - E) + b + c)

Expanding the equation further:

1/3(a + b + c) = 1/3(3F - 2D - E + b + c)

= (F - (2/3)D - (1/3)E) + (1/3)(b + c)

Therefore, the point with the position vector 1/3(a + b + c) is given by:

P = F - (2/3)D - (1/3)E + (1/3)(b + c)

Substituting the midpoints:

P = (A + B) / 2 - (2/3)((B + C) / 2) - (1/3)((A + C) / 2) + (1/3)(b + c)

= (A + B - 2B - 2C - A - C + b + c) / 2 + (1/3)(b + c)

= (b + c - B - C) / 2 + (1/3)(b + c)

Therefore, the midpoint of three points with the position vector 1/3(a + b + c) is given by:

P = (b + c - B - C) / 2 + (1/3)(b + c)

The point with the position vector 1/3(a + b + c) is given by:

P = F - (2/3)D - (1/3)E + (1/3)(b + c)

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The figure is cut into 15 equal pieces. Shade 2/5 of the figure

Answers

Answer: Shade 6 pieces

Step-by-step explanation:

Because 2/5 of 15 is 6

-3w-4+5w=32 what is the solution?

Answers

Answer:

w = 18

Step-by-step explanation:

Step 0: Set up the equation

=> -3w - 4 + 5w = 32

Step 1: Move the same variable together

=> -3w + 5w = 32 + 4

Step 2: Add up and simplify

=> 2w = 36

Step 3: Divide both by 2

=> w = 18

Answer:

W=18

Step-by-step explanation:

-3w-4+5w=32

-3w+5w-4=32

2w-4=32

2w=32+4

2w=36

W=18

How do you do this question?

How do you do this question?

Answers

Step-by-step explanation:

Use the first fundamental theorem of calculus.

∫₆¹⁰ f'(x) dx = f(10) − f(6) = 8 − 8 = 0

A safety officer wants to prove that μ = the average speed of cars driven by a school is less than 25 mph. Suppose that a random sample of 14 cars shows an average speed of 24.0 mph, with a sample standard deviation of 2.2 mph. Assume that the speeds of cars are normally distributed. What is the p-value?

Answers

Answer:

\(t=\frac{24-25}{\frac{2.2}{\sqrt{14}}}=-1.70\)    

The degrees of freedom are given by:

\(df=n-1=14-1=13\)  

The p value for this case would be given by:

\(p_v =P(t_{(13)}<-1.70)=0.0565\)  

Step-by-step explanation:

Information given

\(\bar X=24\) represent the mean height for the sample  

\(s=2.2\) represent the sample standard deviation

\(n=14\) sample size  

\(\mu_o =25\) represent the value that we want to test

t would represent the statistic

\(p_v\) represent the p value for the test

Hypothesis to verify

We want to cehck if the true mean is lees than 25 mph, the system of hypothesis would be:  

Null hypothesis:\(\mu \geq 25\)  

Alternative hypothesis:\(\mu < 25\)  

The statistic would be given by:

\(t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}\)  (1)  

Replacing the info given we got:

\(t=\frac{24-25}{\frac{2.2}{\sqrt{14}}}=-1.70\)    

The degrees of freedom are given by:

\(df=n-1=14-1=13\)  

The p value for this case would be given by:

\(p_v =P(t_{(13)}<-1.70)=0.0565\)  

How many solutions does the following equation have? 14(z+3)=14z+21

Answers

Answer:

No solutions

Step-by-step explanation:

14(z + 3) = 14z + 21

Expand brackets.

14z + 42 = 14z + 21

Subtract 14z on both sides.

42 = 21

There are no solutions.

Answer:

No solution

Step-by-step explanation:

First, We have to simplify the right side.

Distribute 14, 14z+42.

Now the equation stands as 14z+42=14z+21

Subtract 14z from both sides,

this makes it 42=21.

We know when the solution is #=#, our answer is no solution.

(X to the second power y to the fifth power)5

Answers

Answer:

\((x^2y^5)5 = 5x^2y^5\)

Step-by-step explanation:

Remove the parentheses to factor.

\(= x^2y^5 \times 5\)

Flip the expression, creating a leading term and simplifying the equation.

\(= 5x^2y^5\)

Rehan was playing a game of Burger shop. He scored points for each burger he sell. Rehan
scored 140 points for selling his first burger. He scored 160 points for selling his second burger, 180
for selling his third burger, and so on .
(i) Find the number of points Rehan scored for selling his 20th burger.
(ii) Find the total number of points Rehan scored for selling his 20 burgers

Answers

Step-by-step explanation:

the answer is in the above image

Rehan was playing a game of Burger shop. He scored points for each burger he sell. Rehanscored 140 points

The polynomial function f(x) = x³ - 4x²-3x + 18 has (x+2) as one of its linear factors. Use long division to find the other linear factors.
Separate multiple factors with a comma. If there are any repeated factors, only write them once.

Answers

The complete factorization of the polynomial function f(x) = x³ - 4x² - 3x + 18 is (x + 2)(x - 22).

What is a polynomial ?

A polynomial is a mathematical expression involving a sum of powers in one or more variables (indeterminates) multiplied by coefficients.

where n is a non-negative integer (the degree of the polynomial), x is the variable, and (the coefficients of the polynomial). The highest power of x in the expression is n, and this term is called the leading term. The coefficient of the leading term, a_n, is called the leading coefficient.

To find the other linear factors of the polynomial function f(x) = x³ - 4x² - 3x + 18, we can use long division by dividing the polynomial function by (x + 2).

Here's how the long division would look like:

x³ - 4x² - 3x + 18

       ÷ x + 2

__________________________

x² - 6x - 20

             ÷ x + 2

__________________________

x - 22

       ÷ x + 2

__________________________

-20

here -20 is the remainder.

The complete factorization of the polynomial function f(x) = x³ - 4x² - 3x + 18 is (x + 2)(x - 22).

So, the other linear factors are x - 22.

Therefore, The complete factorization of the polynomial function f(x) = x³ - 4x² - 3x + 18 is (x + 2)(x - 22).

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Please help with this!!! Multiply 6x5 7/8

Please help with this!!! Multiply 6x5 7/8

Answers

Answer:

35 and 1/4

Step-by-step explanation:

6x47/8

6/1x47/8

282/8

35 1/4 or 35.25

Mario needs a loan to buy a tractor for his farm. He qualified for a loan at 2 different banks.
.
First Bank of Trust
Loan Amount: $25,000
Annual Simple Interest
Rate: 6.5%
Loan Length: 4 years
What is
.
Enter your answer in the box.
.
Valor Bank
Loan Amount: $25,000
Annual Simple Interest
Rate: 4%
Loan Length: 6 years
total amount Mario will pay, including loan amount and interest, for the First Bank of Trust loan?

Answers

Answer:$31,500

Step-by-step explanation:

To calculate the total amount Mario will pay, including the loan amount and interest, for the loan from First Bank of Trust, we need to calculate the interest and add it to the loan amount.

The formula to calculate simple interest is:

Interest = (Loan Amount) x (Interest Rate) x (Loan Length)

Let's plug in the values given:

Loan Amount = $25,000

Interest Rate = 6.5% (or 0.065 as a decimal)

Loan Length = 4 years

Interest = $25,000 x 0.065 x 4 = $6,500

Now, let's calculate the total amount Mario will pay:

Total Amount = Loan Amount + Interest = $25,000 + $6,500 = $31,500

Therefore, the total amount Mario will pay, including the loan amount and interest, for the First Bank of Trust loan is $31,500.

please help for this question​

please help for this question

Answers

Using the translation vector of 3 units up and 1 unit right resulted to image coordinate of

(3, 7)

(3, 5)

(2, 5)

The image is attached

How to find the translation vector

The translation vector is of the rule 3 units up and 1 unit to the right

The coordinate of the preimage are

(2, 4)

(2, 2)

(1, 2)

The translation is done as below

(2 + 1, 4 + 3) = (3, 7)

(2 + 1, 2 + 3) = (3, 5)

(1 + 1, 2 + 3) = (2, 5)

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please help for this question

What is the y-intercept when the coordinate is 9,1 and the slope is 4 8

Answers

Answer:

the formula for this is y=mx+b

b stands for the y, m is the slope of the line,  and x stands for the x axis!

Step-by-step explanation:

i am pretty sure your answer is -1.4

hope this helps I to help you out attached a screenshot

What is the y-intercept when the coordinate is 9,1 and the slope is 4 8

A loaf of bread that originally sold for $1.87 undergoes a 5% price increase each year. Find the new cost of a loaf of bread after 12 years.

Answers

Answer:

$2.99

Step-by-step explanation:

find 5% of $1.87 by multiplying 1.87 by 0.05. to get 0.0935. then multiply 0.0935 by 12 to get 1.122. round that to 1.12 and add it to the original 1.87 to get 2.99.

WILL MARK BRAINLIEST
Use the function below to find F(3)
F(x)=(1/5)^x

WILL MARK BRAINLIESTUse the function below to find F(3)F(x)=(1/5)^x

Answers

The value of the function F(3) will be 1/125. It is obtained by putting the value 3 in the place of x.

What is a function?

A connection between independent variables and the dependent variable is defined by the function. Functions help to represent graphs and equations.

A function is represented by the two variables one is dependent and another one is an independent function. The relation between them is shown as y if dependent and x is the independent variable.

F(x)=(1/5)ˣ

F(3)=(1/5)³

F(3)=1/125

Hence, the value of the function F(3) will be 1/125.

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What is the degree of the polynomial, y^2+7x^14-10x^2?

Answers

The degree of the polynomial is 14

How to determine the degree of the polynomial?

The polynomial is given as:

y^2+7x^14-10x^2

Here, we assume that the variable of the polynomial is x

The highest power of x in the polynomial y^2+7x^14-10x^2 is 14

Hence, the degree of the polynomial is 14

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Find the length and width of a rectangle that has the given area and a minimum perimeter.
Area: 121 square feet
Length = _ meters
Width = _ meters

Answers

The Length and Width = 11 feet with minimum perimeter = 22 feet

What exactly is a math area?

The amount of space occupied by a flat (2-D) surface or an object's shape is known as its area. Draw a square on a piece of paper using a pencil. A 2-D figure, that is. The term "Area" refers to the area that a shape occupies on paper. Now picture that your square is composed of smaller unit squares.

Given that:

A=s^2 = 121, where s is a square side.

s=sqr121 = 11

length=width = 11

perimeter =4s=4(11)=22

A=LW

121=LW

L=121/W

utilizing calculus,

Perimeter = P = 2L+2W  = 2(121/W) + 2W = 242/W + 2W

Set the derivative equal to zero before determining W.

P'(W) = 2 -242/W^2 = 0

2W^2 =242

W^2 = 121

W =sqr121 = 11 = width of the rectangle that minimizes perimeter

L= 121/sqr121 = sqr121 = 11 = length of the rectangle that minimizes perimeter

L=W means a square with 4 sides each = 11

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Write 9/7 as a mixed number. Give your answer in its simplest form.

Answers

Answer:

1 2/7 ........................................

Answer:

1 2/7.

Step-by-step explanation:

Divide 9 by 7 :- this gives 1 with a remainder of 2.

So it is 1 2/7.

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Informative essay about Joan arc and their accomplishments ideas and invention have transformed the lives of millions of people what is the name for the smallest particle that still has the chemical properties of a larger piece? Please help!! Will mark the brainliest according to piaget's theory, during periods of rapid cognitive change, children group of answer choices shift from assimilation to accommodation. shift from accommodation to assimilation. equally balance assimilation and accommodation. are in a state of cognitive equilibrium. Consider each of the following scenarios and express an opinion about the proper treatment of the transactions. Support your conclusions with Topic 842 in the Codification and provide appropriate citations.Butler Enterprises enters into an agreement with Hart Industries to lease warehouses with a current market value of $350,000. The space is currently occupied by another tenant who has been reluctant to leave. As a condition of the lease contract between Butler and Hart, Butler agrees to pay the current tenant $5,000 to vacate the property. Butler Enterprises agrees to make lease payments of $40,000 at the beginning of each year for the 5-year term of the lease. The lease does not contain a bargain purchase option and the warehouse space is not specialized. It is expected that the remaining useful life of the warehouse is 25 years. Butler Enterprises recently entered into a similar term loan at a rate of 7%..a. How should Butler treat the $5,000 incentive payment to the current tenant? (Please be sure to provide a citation for your answer.)b. Should Butler classify this as an operating or finance lease? (Where do you find the guidelines for classification in the codification?)c. On the date that the lease commences, what is the amount of the right-of-use asset and the lease liability (before making the first $40,000 payment)?d. At the end of the first year, what is the journal entry to record the lease expense and amortization of the right-of-use asset? The standard precautions guidelines are designed to. what specific words in war pigs lyrics make the strongest impression? a pregnant woman recently diagnosed with the genital herpes virus asks the nurse for more information on the virus. which responses by the nurse would be appropriate? I'm not sure if my domain and range i put is right , so please let me know and write a rule for the function represented by the graph at the left . Also explain it to me and i'll give brainliest ! if you make a copy of a file on drive, will it still work once the other person deletes the original? Select all expressions equivalent to 7/10 O 10/7 O 7 divided by 10O 7 X 1/10O 10 divided by 7O 1 3/7 Consider the vector whose initial point is P(3,5) and terminal point is QC - 6,6). Find the position vector. Enter your answer in component form, i.e. as 0 Question 131An abductively simple theory is one that is:ateO A result of applying Ockham's RazorO The most parsimoniousO (a) and (b) aboveO Easy to understandQuestion 14 mywebcast is a new company that makes it easy for individuals to create streaming videos on the internet to share with friends and family for a small fee. mywebcast wants to expand their offerings of video streaming services but needs cash to be able to do this. the second national bank of oklahoma city, through a subsidiary, gives them the cash they need for an ownership share in the company. which of the more recent services that banks offer is mywebcast taking advantage of? The value of y varies directly with x.When y=3 , x=1 .What is the value of y when x is 4 ? An engineering student answered 81 questions correctly on a 90 question test what percent of the questions did she answer correctly what percent were incorrect What is the purpose of our feeling pain? Why must the opportunity cost of a decision always be desirable. During glycolysis, the electron carrier _____________________ accepts a pair of high-energy electrons and becomes NADH. the model describes the tendency of a relationship with a narcissist to start positively but end very negatively.a.apple pieb.cheesecakec.chocolate caked.pumpkin pie