Jada walks up to a tank of water that can hold up to 10 gallons. When it is active, a drain empties water from the tank at a constant rate. When Jada first sees the tank, it contains 5 gallons of water. Six minutes later, the tank contains 3 gallons of water. Just type the number for your answer, and be prepared to explain or show your reasoning for all answers. 1. At what rate is the amount of water in the tank changing? Use a signed number for the rate. 2. How many more minutes will it take for the tank to drain completely? 3. How many minutes before Jada arrived was the water tank completely full?

Answers

Answer 1

Answer

1) Rate of change of water in the tank = -⅓ gallons per minute = -0.333 gallons per minute.

2) It would take the tank an extra 9 minutes to drain completely from the current level of 3 gallons of water.

3) THe tank must have been draining for 15 minutes before Jada first arrives at the water tank.

Explanation

1) The rate of leakage or rate of change of the volume of water in the tank is given as

\(\text{Rate of leakage = }\frac{Change\text{ in the volume of water in the tank}}{Time\text{ take for this change}}\)

For this tank, Jada first sees the water in the tank at 5 gallons and then, she then sees the water in the tank at 3 gallons, 6 minutes later.

Change in the volume of water in the tank = (Final volume) - (Initial volume)

Change in the volume of water in the tank = 3 - 5 = -2 gallons

Time taken for this change = 6 minutes

Rate of change of water in the tank = (-2/6) = -⅓ gallons per minute = -0.333 gallons per minute.

2) How many minutes will it take for the tank to be completely empty?

\(\begin{gathered} \text{Rate of change of water in the tank = }\frac{Change\text{ in the volume of water in the tank}}{Time\text{ take for this change}} \\ \text{Rate of change of water in the tank = }\frac{(final\text{ volume) - (Initial volume)}}{Time\text{ taken}} \end{gathered}\)

If we want to find the time it would take for the tank to now be empty, from the current volume of 3 gallons that it is now,

Final volume = 0 gallon

Initial volume = 3 gallons

Time taken = t = ?

Rate of change of water in the tank = -0.333 gallons per minute.

\(\begin{gathered} \text{Rate of change of water in the tank = }\frac{(final\text{ volume) - (Initial volume)}}{Time\text{ taken}} \\ -0.3333=\frac{0-3}{t} \\ -0.3333=\frac{-3}{t} \\ \text{Cross multiply} \\ t=\frac{-3}{-0.3333} \\ t=9\text{ minutes} \end{gathered}\)

3) Before Jada's arrival, the tank must have been full at 10 gallons.

When she first arrives, she meets the tank at 5 gallons.

The time it takes the tank to drain from 10 gallons to 5 gallons is what we need to find now

Final volume = 5 gallon

Initial volume = 10 gallons

Time taken = t = ?

Rate of change of water in the tank = -0.333 gallons per minute.

\(\begin{gathered} \text{Rate of change of water in the tank = }\frac{(final\text{ volume) - (Initial volume)}}{Time\text{ taken}} \\ -0.3333=\frac{5-10}{t} \\ -0.3333=\frac{-5}{t} \\ \text{Cross multiply} \\ t=\frac{-5}{-0.3333} \\ t=15\text{ minutes} \end{gathered}\)

Hope this Helps!!!


Related Questions

A man gave 5/12 of his money to his son , 3/7 of the remainder to his daughter and the remaining to his wife if his wife gets rs 8700 what is the total amount

Answers

The total amount the man had = 52,200 rupees. Out of this, he gave 21,750 rupees to his son, 13,050 rupees to his daughter, and 17,400 rupees to his wife , the total amount given away by the man = 21,750 + 13,050 + 17,400 = 52,200 rupees.

A man gave 5/12 of his money to his son, 3/7 of the remainder to his daughter, and the remaining to his wife. If his wife gets Rs. 8,700, what is the total amount?

The given problem can be solved using the concept of ratios and fractions. Let us solve the problem step-by-step.Assume the man had x rupees with him.The man gave 5/12 of his money to his son.

The remaining amount left with the man = x - 5x/12= (12x/12) - (5x/12) = (7x/12)The man gave 3/7 of the remainder to his daughter.'

Amount left with the man after giving it to his son = (7x/12)The amount given to the daughter = (3/7) x (7x/12)= (3x/4)The remaining amount left with the man = (7x/12) - (3x/4)= (7x/12) - (9x/12) = - (2x/12) = - (x/6) (As the man has given more money than what he had with him).

Therefore, the daughter's amount is (3x/4) and the remaining amount left with the man is (x/6).The man gave all the remaining amount to his wife.

Therefore, the amount given to the wife is (x/6) = 8700Let us find the value of x.x/6 = 8700 x = 6 x 8700 = 52,200

Therefore, the man had 52,200 rupees with him.He gave 5/12 of his money to his son. Therefore, the amount given to his son is (5/12) x 52,200 = 21,750 rupees.

The remaining amount left with the man = (7/12) x 52,200 = 30,450 rupees.He gave 3/7 of the remainder to his daughter. Therefore, the amount given to his daughter is (3/7) x 30,450 = 13,050 rupees.

The amount left with the man = (4/7) x 30,450 = 17,400 rupees.The man gave 17,400 rupees to his wife.
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Haaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaq

Haaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaq

Answers

Answer: 20

Step-by-step explanation:

because if he earned 12 dollars and it equals 32 dollars he would have 20

Ken had $40 then spent $20 on a game he now has $20 left then he earns $12 mowing lawn and now has $32.

Ken had $40 before he bought the game

Help! I’ll give brainliest it’s on quadratic equations

Help! Ill give brainliest its on quadratic equations

Answers

Answer:

divide b by 2 and square it to get c:

-20/2 = -10

\((-10)^2 = 100\)

second part: (x - 10)(x - 10) or \((x-10)^2\)

Answer:

x (x-20)

Step by step

estimate 3 1/2 minus 1 1/3

Answers

Answer:

2.17

Step-by-step explanation:

if you subtract 3 1/2 by 1 1/3 it equals 2.1666667 and 2.1666667 rounds to 2.17 and thats how you get your answer.

100 Points! Geometry question. Photo attached. Please show as much work as possible. Thank you!

100 Points! Geometry question. Photo attached. Please show as much work as possible. Thank you!

Answers

(A) Triangle ABC, and triangle QPR are similar based on side-side-side (SSS) similarity.

(B) Triangle ABC and triangle DEF are similar based on side-side-side (SSS) similarity.

(C) ) Triangle STU and triangle JPM are similar based on side-angle-side (SAS) similarity.

(D) ) Triangle SMK and triangle QTR are similar based on angle-angle (AA) similarity.

What are similar triangles?

Similar triangles have the same corresponding angle measures and proportional side lengths.

The triangle similarity criteria are:

AA (Angle-Angle)SSS (Side-Side-Side)SAS (Side-Angle-Side)

(A) Triangle ABC, and triangle QPR are similar based on side-side-side similarity.

12/8 = 9/6

1.5 = 1.5

(B) Triangle ABC and triangle DEF are similar base on side-side-side similarity as shown in the side lengths.

(C) ) Triangle STU and triangle JPM are similar base on side-angle-side similarity.

14/10 = 21/15

1.4 =

(D) ) Triangle SMK and triangle QTR are similar base on angle-angle similarity.

SMK = 90⁰, 60⁰, 30⁰

QTR =  90⁰, 30⁰, 60⁰

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A package of 6 pairs of insulated socks costs ​$ 47.94. What is the unit price of the pairs of socks​?

Answers

The unit price of the pair of socks is $7.99

How to calculate the unit price ?

Unit price can be described as the price of one item. In this case scenario, we are looking for the unit price of a pair of socks.

The unit price can be calculated as follows

6 pair=47.94

1 pair = x

Cross multiply both sides

6x= 47.94

Divide both sides by the coefficient of x which is 6

6x/6= 47.94/6

x= 7.99

Hence the unit price is $7.99

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Solve for x in an inverse variation problem, where k = 2 (the constant of variation) and y = 8.


A. X= 4
B. x= .25
C. x = 16
D. x=3

Answers

Answer:

A

Step-by-step explanation:

The inverse variation y = k/x, when y = 8 and k = 2 then x = 0.25.

What are ratio and proportion?

A ratio is a comparison between two similar quantities in simplest form.

Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.

In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.

An inverse relationship can be formed between two variables x and y as,

y = k/x.

Given, k = 2 and y = 8.

8 = 2/x.

x = 2/8.

x = 1/4.

x = 0.25.

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The percentages that several players on a basketball team score of the team's total number of points are shown. Order the values from least (on top)
to greatest (on bottom).
1/5
0.15
24%
27/100
14%

The percentages that several players on a basketball team score of the team's total number of points

Answers

Ordering the percentages scores that several players on a basketball team score of the team's total number of points from least (on top) to greatest (on bottom) is as follows:

14%15%20%24%27%.

What is the percentage?

The percentage is the representation of the ratio of a value or quantity compared to another.

The percentage is computed as the quotient of the division operation between the numerator (a portion of the value) and the denominator (the whole value), which is expressed over 100.

Percentage Scores:

1/5 = 20% (1/5 x 100)

0.15 = 15%

24% = 24%

27/100 = 27% (27/100 x 100)

14% = 14%

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A 6 sided die is rolled 2 times. What is the probability of getting a 1 both times ?

Answers

Answer:

Step-by-step explanation:  If you roll the die twice, the probability of getting a even number both times is (1/2)(1/2) ... A probability experiment consists of rolling a 6 sided die

On April 1 the ABC Inc. paid $20,400 to Acme Realty for 12 months Rent beginning May 1. The company did the correct recording on April 1. If financial statements are prepared on December 31st, what is the adjusting entry needed on the balance sheet?



Decrease PrePaid Rent 20,400 / Increase Rent Expense 20,400


Decrease PrePaid Rent 13,600 / Decrease Rent Expense 13,600


Decrease PrePaid Rent 13,600 / Increase Rent Expense 13,600


Decrease Cash 20,400 / Increase PrePaid Rent 20,400

Answers

Answer:

Decrease PrePaid Rent 13,600 / Increase Rent Expense 13,600

Step-by-step explanation:

Given that:

The total amount paid = $20400  to Acme Realty for 12  months;

Thus, for each month rent; we get = $20400/12 = $1700

Now, the moth expired from May 1 to Dec 31 = 8 months

The rent expense for the year will be: monthly rent × number of months

= 1700 × 8

= $13,600

Thus, the balance sheet's adjusting entry will be to record 13,600 as the expense and decrease the total 20400 rent paid with 13600 and book it as prepaid rent as of December end.

Solve for the value of x

Solve for the value of x

Answers

Answer:

  x = 8

Step-by-step explanation:

The angle with the expression in it is complementary to the 30° angle, so is 60°. Then we have ...

  4 +7x = 60

  7x = 56 . . . . . . subtact 4

  x = 8 . . . . . . . . .divide by 7

Your classmate tells you the details of the great deal he got on his mortgage: 30-year 3.5% fixed ratewith a 10% down payment.2. If his new home costs $136,000, what is his down payment?3. How much is he going to borrow to buy the house (assuming he only has the money to make the down paymentfrom the previous question)?4. Determine how much his monthly payments would be. (round to the hundredths places)5. How much will he pay in interest over the lifetime of this mortgage? (round to the hundredths places)

Answers

Annuities

The new home costs $136,000.

2. The down payment is 10%:

DP = 10 * $136,000 / 100 = $13,600

The down payment is $13,600

3. Once he pays the down payment, the amount to borrow is:

$136,000 - $13,600 = $122,400.

He is going to borrow $122,400.

4. Now we need to use the annuities formula for A = $122,400, t = 30 years, r = 3.5%, monthly payments.

The formula is:

\(A=R\times\frac{1-\left(1+i\right)^{-n}}{i}\)

Where:

R = Amount of the monthly payments

i = Monthly rate of interest

n = Number of payments

Solving for R:

\(R=\frac{A\times i}{1-\left(1+i\right)^{-n}}\)

Calculate:

\(i=\frac{3.5}{100\times12}=0.0029167\)

I will keep all the decimals in the calculator. Only a few are shown.

n = 10 years * 12 months per year = 120 payments.

Calculate the amount of the monthly payments:

\(\begin{gathered} R=\frac{122,400\times0.002916}{1-\left(1+0.002916\right)^{-120}} \\ Calculating: \\ R=1210.36 \end{gathered}\)

The monthly payments would be $1,210.36

5. The final value of the mortgage is given by:

\(FV=A\left(1+n\right)^n\)

Substituting:

\(\begin{gathered} FV=122,400\left(1+0.002916\right)^{120} \\ FV=173,605.41 \end{gathered}\)

The interest paid is:

I = FV - A

I = $173,605.41 - $122,400

I = $51,205.41

He would pay $51,205.41 in interest over the lifetime of the mortgage

A triangle is shown on the graph:

A coordinate plane is shown. A triangle has vertices at negative 6 comma 2, negative 5 comma 5, negative 2 comma 2.
What effect will a 90-degree clockwise rotation have on the triangle? Be sure to address how it could impact the angles, side lengths, and any congruency between the original pre-image and the image.

Answers

9514 1404 393

Answer:

  the image is congruent with the original, angles and lengths are unchanged

Step-by-step explanation:

Translation, rotation, and reflection are known as "rigid transformations". Effectively, you can cut the figure from some rigid material, and move it according to any of these transformations without causing it to deform in any way.

All lengths and angles retain their measures when the figure is rotated about any point, through any angle. The rotated figure is congruent with the original.

__

Here, the triangle is defined in the second quadrant. Rotating it 90° clockwise will move it to the first quadrant. The transformation of coordinates is ...

  (x, y) ⇒ (y, -x)

1. Which numerical expression has the value of 60?
4. (12+ 4) 3 b. 12 - 14 - 3) c.** 12 + 3)
d. 12 - 4-3​

Answers

Answer:

sorry but I can't really tell if any of them have 60 it kind of looks like none of them have 60 unless theres a bit multiplying then maybe I can help but other wise right no sorry

If there is a song that is 2 minutes and 58 seconds long and it plays 40 times how long does it play convert answer into seconds.

Answers

Answer: I got 7120 seconds

Step-by-step explanation:

There's 178 seconds in the song (for more context, I just converted the 2 minutes into seconds and added it with 58) then I multiplied it by the total amount of times it played (in this case, 40)

Hope this helps

Determine the leading coefficient of the polynomial graphed below.

Determine the leading coefficient of the polynomial graphed below.

Answers

The leading coefficient of the polynomial is 4.

The leading coefficient of a polynomial, we first need to understand what the leading term of the polynomial is.

The leading term is the term with the highest degree in the polynomial.

For example, in the polynomial \(3x^4 + 2x^3 - 5x^2 + 4x - 1\(, the leading term is 3x^4.
To determine the leading coefficient of a polynomial, we simply look at the coefficient of the leading term. For example, in the polynomial \(3x^4 + 2x^3 - 5x^2 + 4x - 1\), the leading coefficient is 3.
Now, let's apply this concept to the polynomial graphed below. From the graph, we can see that the polynomial has a degree of 2, meaning that the highest power of x in the polynomial is 2.

Therefore, the leading term of the polynomial is \(ax^2\), where a is the leading coefficient.
The vertex is the point on the graph where the polynomial reaches its maximum or minimum value. In this case, the vertex is located at \((-2, 4)\)
Since the vertex is the highest point on the graph, we know that the coefficient of x^2 must be positive.

In this case, the value of y at the vertex is 4.

Therefore, the leading coefficient of the polynomial is 4.

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Two pounds of cashews cost $19, and 8 pounds cost $76.
Number of pounds 2 3 8
Cost ($) 19 28.50 76
Is the relationship between the cost and the number of pounds of cashews a proportional relationship? Explain.

How can you use your equation to find the cost of 6 pounds of cashews?

Would it be possible to prove this is proportional or not proportional without the table? Explain how you know.

Answers

Answer:

wait are you asking the question or giving the answer?

Step-by-step explanation:


If f(x) -V7-3, complete the following statement (round your answer
to the nearest hundredth):
x + 2

If f(x) -V7-3, complete the following statement (round your answerto the nearest hundredth):x + 2

Answers

Answer:

- 1.67

Step-by-step explanation:

f(x) = \(\frac{3}{7+2}\) - \(\sqrt{7-3}\)

    =  \(\frac{3}{9}\) - \(\sqrt{4}\)

    = \(\frac{1}{3}\) - 2

    = - 1 \(\frac{2}{3}\)

    = -1.6666666

    = -1.67

a basketball team wants to paint half of a free-throw circle grey. If the circumference of the free-throw circle is 30.77 feet, what is the are, in square feet, that will be painted grey? use 3.14 for PI, and round to the nearest square foot.

Answers

The area that will be painted grey is approximately 38 ft².

The circumference of the free-throw circle is given as 30.77 feet, and we know that the free-throw circle is a perfect circle. We can use the formula for circumference to find the radius of the circle, which will be necessary to calculate its area.

Circumference of a circle = 2πr

30.77 = 2 x 3.14 x r

r = 30.77 / (2 x  3.14) = 4.9 feet

Half of the circle will be painted grey. Find the area of half the circle using the formula for the area of a circle.

Area of a circle = π x r²

Area of half the circle = 0.5 x  π x r²

Area of half the circle = 0.5 x 3.14 x 4.9²

Area of half the circle = 37.73 ft²

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Just had 28 songs on his music player this is seven times as many song is Gomez which number sentence below shows how many songs Kevin Has

Answers

Answer: 196

Step-by-step explanation: Just had 28 songs on the music player and Gomez has seven times as much.

you multiply and get 196.

15
Select the correct answer.
Which of the following statements is correct about quadratic number patterns?
O A.
О в. The third difference is greater than zero.
O C.
The second difference is constant.
The difference between terms is always positive.
O D.
The first difference is constant.

Answers

The second difference is constant in quadratic number patterns.  The correct option is C

What is Quadratic number patterns?

Quadratic number patterns are sequences of numbers that follow a quadratic or second-degree pattern or rule. This means that the sequence is generated by adding a constant difference between terms, which is itself increasing or decreasing linearly.

A quadratic sequence can be defined by a formula of the form :

an = a + bn + cn^2

Where

"an" is the nth term of the sequence, "a", "b", and "c" are constants, "n" is the position of the term in the sequence (starting with n=1).

Therefore, the correct option is C

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Find the solution for x if |3 + 10x| = 23.

Answers

Answer:

x=2 and 2.6

Step-by-step explanation:

The required solutions for the given function |3 + 10x| = 23 are x = 2 and x = -2.6.

What is absolute value?

Absolute value is defined as the magnitude or size of a number, no negatives are allowed. The distance a number is from 0 on the number line is known as the absolute value of the number.  

The function is given in the question as:

|3 + 10x| = 23

To solve for x, we can begin by expressing the absolute value as a piecewise function:

|3 + 10x| = 23

(3 + 10x) = 23, if 3 + 10x ≥ 0

-(3 + 10x) = 23, if 3 + 10x < 0

If 3 + 10x ≥ 0, then 3 + 10x = 23, so x = (23 - 3) / 10 = 2.

If 3 + 10x < 0, then -(3 + 10x) = 23, so 3 + 10x = -23. This means that x = (-23 - 3) / 10 = -2.6.

Thus, the solutions for x are x = 2 and x = -2.6.

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An experiment was conducted to investigate the relationship between the dose of a puin medication and the number of hours of pain relief; Twenty individuals with chronic pain wcre randomly assigned t0 one of five doses 0.0,0.5,1.0,1.5.2.0 in milligrams (mg) of medication. The results are shown in the scatterplot below. The data were used to fit least-squares regression line to predict the number of hours of- pain relief for given dose. Which of the following would be revealed plot of the residuals of the regression versus the dose" (A)The SUm of the residuals is less than 0, (B) The sum of the residuals is greater than 0_ (C) There are outliers associated with the lower doses (D) The variation in the hours of pain relief is not the same across the doses. (E) There is positive linear relationship between the residuals and the dose _

Answers

The least-squares regression line can be used to predict the number of hours of pain relief given a certain dose.

This is done by taking the sum of the squares of the residuals and finding the minimum value. The residuals are the differences between the observed values and the predicted values. The plot of the residuals versus the dose would reveal the variation in the hours of pain relief across the doses.

For example, the formula for finding the least-squares regression line is

Y = b0 + b1X

where Y is the predicted value, b0 is the intercept, b1 is the slope, and X is the dose.

To calculate the residuals, we take the difference between the observed values and the predicted values for each dose.

residual = Y (observed) - Y (predicted)

The plot of the residuals versus the dose would reveal if the variation in the hours of pain relief is not the same across the doses. This is because if the variation is not the same, then the residuals would not be evenly distributed. If the residuals were evenly distributed, then the sum of the residuals would be equal to zero.

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Solve for x. 7.5x/11=4.8/5

Answers

The value of the variable is 1. 40

How to determine the value

we need to know that algebraic expressions are described as expressions that are made up of term, variables, constants, factors and coefficients.

these algebraic expressions are also made up of arithmetic operations.

These arithmetic operations are listed as;

BracketDivisionAdditionSubtractionMultiplicationParentheses

From the information given, we have that;

7.5x/11=4.8/5

cross multiply the values, we get;

7.5x(5) = 4.8(11)

multiply the values

37. 5x = 52. 8

Divide both sides by the coefficient of x, we get;

x = 1. 40

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Please help me solve this fast!

Please help me solve this fast!

Answers

Answer:

1) 7/8     8/7

2) 4.4

3) 3.7

4) 2.8

Step-by-step explanation:

Length of bottom side of Figure A: 8 cm

Length of bottom side of Figure B: 7 cm

From Figure A to Figure B, the scale factor is 7/8.

7/8

8/7

5 × 7/8 = 35/8 = 4.375

4.4

3.2 × 8/7 = 3.657...

3.7

3.2 × 7/8 = 2.8

2.8

Stephaine ran 3 miles in 30 minutes. At this rate, how long will it take for Stephaine to run 2 miles?\

Answers

Answer: It will take Stephanie 20 minutes to run 2 miles.

Step-by-step explanation:

Since 3 miles is equal to 30 minutes, let us find the number of minutes run per mile

divide 30 by 3

10-It takes 10 minutes to run 1 mile

multiply 10 by the number of miles, which is 2

2x10=20

20 minutes

If 5log22x = 20, what is the value of x?

16

8 (correct)

5

4

Answers

Answer:

Answer is 8

Step-by-step explanation:

The correct answer is 8

Answer:

8

Step-by-step explanation:

5log2(2x)=20

- Divide both sides by 5.

log2(2x)=4

- Apply log rules

2x = 16

- Divide both sides by 2

x = 8

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the perimeter of a triangle is 32 feet. One side of the triangle is 11 feet longer than the second side. The third side is 9 feet longer than the second side. Find the length of each side.

Answers

Answer:

One side - 15 feet

Second side - 4 feet

Third side - 13 feet

Step-by-step explanation:

Let's call the sides A B and C, respectively.

We know that:

A = B + 11

C = B + 9

and that

A + B + C = 32

Please note that we have 3 equations and 3 unknowns. We can solve this, we'll use substitution.

A + B + C = (B + 11) + B + (B + 9) = 32

3B + 20 = 32

3B = 12

B = 4

The sides have lengths of 4+11 = 15, 4 and 4+9 = 13. This is in fact a proper triangle (because the shorter sides add up to more than the longer side).

For the functions f(x)=−7x^2−x and g(x)=9x^2−4x, find (f−g)(x) and (f−g)(1)

Answers

Answer:

See below.

Step-by-step explanation:

\(f(x)=-7x^2-x\\g(x)=9x^2-4x\\(f-g)(x)=f(x)-g(x)\\(f-g)(x)=(-7x^2-x)-(9x^2-4x)\\(f-g)(x)=-7x^2-x-9x^2+4x\\(f-g)(x)=-16x^2+3x\\\\(f-g)(1)=-16(1)^2+3(1)\\(f-g)(1)=-16+3=-13\)

27 Which equation best represents the relationship between x and y in the graph?
А у 3х + 3
в у 3х - 1
суз
0 - 3x - 1

Answers

Answer:

Pls attach graph

Step-by-step explanation:

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