Mathematics High School

A 9 by 4 centimeter rectangle expands in such a way that the 9–centimeter side is expanding at the rate of 5 centimeters per second and the proportions of the rectangle remain constant. At what rate is the area of the rectangle increasing when its dimensions are 36 by 16 centimeters?

A.
120 cm2/s
B.
140 cm2/s
C.
160 cm2/s
D.
180 cm2/s

Answers

Answer 1

Answer:

160 cm^2/s

Step-by-step explanation:

Just took the test.

Answer 2

Answer:

160cm^2

Step-by-step explanation:

answer from plato

Related Questions

Consider this equation.

7.8 + 2(0.75m + 0.4) = -6.4m + 4(0.5m - 0.8)


Mia solved the equation and determined that m = 2. Is she correct?
She is incorrect because when substituting 2 for m the result was a true statement.
She is incorrect because when substituting 2 for m the result was a false statement.
She is correct because when substituting 2 for m the result was a true statement.
She is correct because when substituting 2 for m the result was a false statement.

Answers

Answer:

B .  She is incorrect because when substituting 2 for m the result was a false statement.

Step-by-step explanation:

Edge. 2020

Answer:

B

Step-by-step explanation:

Dianne went to the grocery store and bought 4 pounds of chicken at $3 per pound, 5 cans of green beans at $0.88 each and 2 pounds of potatoes at $1.80 per pound. If she paid with a . $50 bill, how much change will Dianne have?​

Answers

Answer:

30 dollars is the amount of change she will have

Answer:

$30 is the amount of change she will have.

Step-by-step explanation:

Caroline is working two summer jobs, Making $19 per hour lifeguarding and making $10 per hour washing cars. In a given week she could work no more than 15 total hours and was earn a minimum of $200. Also she must work a minimum of eight hours lifeguarding and a minimum of two hours washing cars, write and solve a system of inequalities graphically And determine one possible solution

Answers

Answer:

12 hours

Step-by-step explanation:

3 hours landscaping = $36

She still needs to make $224 to meet her requirement.

$224 divided by $19 tutoring = 11.79 hours

224÷19=11.79

Rounded to the nearest whole number: 12

This would mean Makayla worked a total of 15 hours and made $264. Which meets her requirements.

PLEASE ANSWER ASAP!!! 45 POINTS!

Answers

Answer:

x =2 [tex]\\\sqrt{24[/tex]

Step-by-step explanation:

a2+b2=c2

(10*10)+(8*8)=x

HELP PLS!!!! SOLVE ALGEBRA

Answers

Answer:

#11) D) x<0 or x≥7

Step-by-step explanation:

Hope this helps

ABCD is a kite with AB≈BC.

Answers

Answer:

Line BD⊥ Line AC

ΔDMC ≅ ΔDMA

Heather's desk is 3 feet long. About how long is it in meters? Use 1 foot = 0.305​

Answers

Answer:

0.9144 or 0.9 (rounded)

Step-by-step explanation:

0.3048*3= 0.9144  (0.9 rounded up)

or

0.305*3= 0.915   (0.9 rounded up)

Hope this helped! (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧

Have a nice day! ( ﾟдﾟ)つ Bye

what is 621 divided by 9

Answers

Answer:

621/9=69

Step-by-step explanation:

Answer:

69

Step-by-step explanation:

69x 9= 621

Parallel lines r and s are cut by two transversals, parallel lines t and u.



How many angles are alternate interior angles with angle 9?

Answers

Angle 7 and angle 15 so the answer is TWO.

Check the picture below for more information. Hope it helps !

Answer:

2

Step-by-step explanation:

help plsssssssss. cm.

Answers

It is -2.1 cm

Hope this helps

Which scenario could be represented by this graph?

Answers

Answer:

its is (b) turns the oven on

Answer:

D

Step-by-step explanation:

I did the test

WHAT IS THE RATE OF CHANGE HELP!!

Answers

Answer:

B) Y=85x

Step-by-step explanation:

The actual rate of change is 75 so you need to find which one(s) have a greater one. The other 2 that are equations have a less rate of change so it is B.

Hope this helps. Pls give brainliest.

I WILL GIVE BRAINLIEST TT

Answers

Answer:

2

Step-by-step explanation:

Yeah its 2 I can explain but will be long but if want comment and I will post but most likely its 2

15PTS PLEASE HELP ASAP!
(dont write random answers pls)
look at the pic attached:

Answers

Answer:

-1.75

Step-by-step explanation:

We know that the midpoint formula is [for the x-coordinate per say] x = 1/2x1 + 1/2x2. If we want to find a point that lies 1/4th of the way we use x = 3/4x1 + 1/4x1. How? Because the point lies 1/4th from one endpoint and 3/4th from the other.

x = 3/4x1 + 1/4x2,

x = 3/4(-3) + 1/4(2) = -9/4 + 2/4 = -7/4

= - 1.75

--- There is an easier way to do it though, but it is really vague so you should not use it. We can form a triangle with MN being the hypotenuse. What would the length of the legs be? They would be 6 and 5. Now let's form a triangle 1/4th of that. 6/4  = 1.5  and 5/4 = 1.25. If you look at the diagram, start from point N move up 1.5 units and over 1.25 forming our mini triangle. You can see the x-axis has a value of -1.75.

using y=mx+b find the slope for
7) 8x + 3y = −9

Answers

Answer:

-8/3

Step-by-step explanation:

8x + 3y = - 9

Let's make y the subject of the formula.

y = - 9/3 - 8x/3

Rearrange

y = - 8x/3 - 3

The slope is the coefficient of x which is - 8/3

If you don't understand, please leave a comment

Please gimme brainliest

can some tell me what does the tooth fairy do with the bones that come out of my face

Answers

Answer:

The tooth does very creepy stuff I have heard that she gives our teeth to the dentist for dental purposes, or even eats our teeth. I am disgusted by this already so this is your answer.

Step-by-step explanation:

A function is shown on the graph what is the domain of the function?

Answers

Answer:

you need to add the graph

Answer:

no graf

Step-by-step explanation:

Find the measure of <1

Answers

Consider the triangle (in which angle4 is present)

by angle sum property,

20 + 40 + angle4 = 180

60 + angle4 = 180

angle4 = 180 - 60

angle4 = 120

Also,

angle2 = 120 (vertically opposite angles)

angle1 + angle2 = 180 (linear pair)

angle1 + 120 = 180

angle1 = 180 - 120

angle1 = 60

"The output is 5 less than twice the input

Answers

Answer:

x=2x-5

Im pretty sure that's it

Find the slope of the line that passes through each pair of points.
C(0, –2), D(3, -2)

Answers

Answer:

0

Step-by-step explanation:

y2-y1/x2-x1

-2+2/3-0

0/3

= 0

Name the three points shown by black dots on the graph below as ordered pairs. Put a comma and a space between each ordered pair.

Answers

Answer:

(10, 40), (15, 60), (25, 100)

Step-by-step explanation:

(x, y) = (10, 40) means x = 10, y = 40

What is the coefficient of q in the sum of these two expressions?
(23q – 34) and (–16q – r)

A. 2/3
B. 3/4
C. 1/2
D. 1

Answers

answer:

1/2 bc 2/3-1/6 is equal to 4/6-1/6=3/6.

3/6=1/2

Step-by-step explanation:

love the oikawa pfp

The coefficient of {q} in the sum of the given expressions is 7.

What is expression?

A mathematical expression is a combination of terms both constants and variables. For example, we can write -

2x + 3y + 5

4x + 5

Given are the expressions as -

(23q – 34) and (–16q – r)

We can write the sum of the given expressions as -

(23q – 34) + (–16q – r)

(23q - 16q) - r - 34

7q - r - 34

Here -

(7)q - r - 34

(7) is the coefficient of {q}.

Therefore, the coefficient of {q} in the sum of the given expressions is 7.

To solve more questions on coefficients, visit the link below

https://brainly.com/question/13431100

#SPJ2

Alejandro uses the steps below to convert StartFraction 5 over 8 EndFraction to a percent. Five-eighths right arrow 8.0 divided by 5 = 1.6. 1.6 = 160 percent. Which best explains Alejandro’s error? The division was computed incorrectly. The division was completed in the incorrect order. The decimal was moved to the right too many times. The decimal was moved to the right instead of the left.

Answers

Answer:

A

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

need help asap this is due in 20 min!!! i will gove brainliest too! questions 8-11

Answers

8. x= 7

9. x= 9

10. x= -10

11. x= -18

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9. The model represents an equation.
1
1
1
-1
-1
1
1
-1
-1
1 1
1
1
-1
1
1
1
What value of x makes the modeled equation true?

Answers

Answer:

1

Step-by-step explanation:

Find the UNIT RATE:
10 miles: 5 hours
A.2 hours: 1 mile
B.1 hour : 2 miles
C.2 miles: 1 hour
D.1 mile: 2 hours

Answers

Answer:

c

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

A proportional relationship between y and x. When x = 3, y=−4 .

What is the constant of proportionality, k?

Enter your answer as a simplified or improper fraction in the box.

k =

Answers

Answer:

k = 4/3

Step-by-step explanation:

Formula for k: y/x

If y = 4 and x = 3, then we use the formula (y/x) in order to find the constant of proportionality:

k = 4/3

if f(x)=9x-2 find the value of expression f(5)

Answers

Answer:

f(x)=43

Step-by-step explanation:

you put the 5 in the places where the x is so

F(5)=9(5)-2

45-2=43

Click on photo if neccessary ​

Answers

the answer would be C

will mark brainliest for correct answer

Answers

Answer:

Y

Step-by-step explanation:

Look at Y and look at the input and output it shows which one is it and how to find it you welcome :)

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