Mathematics High School

The radius of a circle is (2x-3). What is a function for the area of the circle?

Answers

Answer 1

Answer

A = pi * r^2

= pi * (2x^-3)^2

= pi * 2^2 * (x^-3)^2

= pi * 4 * (x^-6)

= 4*pi * x^-6

Step-by-step explanation:

Related Questions

What is the area of a square with side lengths of 3/5 units?

Answers

To find the area of a square or rectangle. you multiply the top/ bottom side by the left/right side. in this case, all sides are the same since it is a square. and 3/5 x 3/5 is .36 or 9/25 in simplest form as a fraction.

How do the temperatures on Neptune compare to Earth's temperatures?

Answers

each planets’ temperature causes seasonal changes.

GIVING BRAINLEST, hi, I need an answer that is 100% correct because this test determines if I'm passing or not, thank you.

Answers

Circumference of circle = π x d
diameter = 3x2= 6m
3.14 x 6 = 18.84m (circumference)

Area of a circle = π x r x r
=3.14 x 3 x 3
=28.26m2 (area)

Answer:

Circumference: 18.84

Area: 28.26

Step-by-step explanation:

Area formula: pi*r^2

For the area:

3.14*3^2

3.14*9

28.26m^2

Circumference formula: 2 * pi *r

For the circumference:

2*3.14*3

6*3.14

18.84 m

Good luck on your test

I need help and the step to find

Answers

Answer: The answer is 169.

Step-by-step explanation:

Hope this helps! Have a good day! :)

Can anyone help me with this question please.

Answers

Answer:

Whats the question?

Step-by-step explanation:

You didn’t ask a question I don’t know what I am to look for.

find the area of the shape
NO EXPLANATION JUST ANSWER

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Answer:

Step-by-step explanation:

Calculate the midpoint of the line segments joining the two points (-8, -7) and (4,9)

Answers

Answer:

Step-by-step explanation:

To calculate the midpoint, you need to plug in the values of x and y into the midpoint formula.

M ( x1 + x2/2 , y1 + y2/2)

M [ -8 + 4/2 , -7 + 9/2]

M ( -2, 1)

question is in photo, giving more points out

Answers

Answer:

atleast 95 degrees

Step-by-step explanation:

I DARE YOU ALL TO DO THIS OR ESTIMATE THE TIME THIS WILL TAKE

100 Jumping Jacks

90 Jump Overs

80 Squats

70 Toe Taps

60 Shoulder Taps

50 Lunges (25 on each leg)

40 Burgeeps

30 V-Ups

20 Pushups

10 Air Punches

Answers

Thank you, you’ll motivate me to work out :)

A coffee shop sells a coffee refill mug for $6.75. Each refill costs $1.25. Last month Kim spent $31.75 on a mug and refills. Write an equation you can use to find the number of refills Kim bought. How many refills did Kim buy?

Answers

Answer:

equation: x(1.25) + 6.75 = 31.75 refills: 20

Step-by-step explanation:

The mug costs $6.75, and you aren't buying multiple cups, so that number stays the same. The number of refills is "x" since we do not know the amount. Next to "x" we multiply 1.25 for the cost of each refill. So now we have "x(1.25)" then we add $6.75 to the equation, for the mug price. Along with the total at the end. To which we now have "x(1.25) + 6.75 = 31.75"

Now we solve the equation. First, subtract 6.75 from each side

x(1.25) + 6.25 = 31.75

-6.25 -6.25

Now we have "x(1.25) = 25" So we have to divide each side by 1.25

x(1.25/1.25) = 25/1.25

x = 20

Therefore, Kim bought 20 refills. To check our work we can replace x with 20 in the original equation.

20(1.25) + 6.75 = 31.75

25 + 6.75 = 31.75

31.75 = 31.75

I'm not the best at explanations, but I hope this helped! :)

13) *
6 points
If a ticket for a single skydiving session is $28.50 and
there are 5 people in your group, how much would
the total amount for your group's tickets be after the
coupon is applied?
O $125.00
O $127.50
O $130.00
O $135.00

Answers

Answer:

Step-by-step explanation:

Denise poured milk into a glass shaped like a right circular cylinder with a radius of 2 inches. When she added chocolate syrup to the milk, the height of the liquid in the glass increased by 2 inch. What was the volume of the chocolate syrup that Denise added to the glass of milk?

Answers

Answer:

go to quizlet https://quizlet.com/141193969/mirrors-and-lenses-flash-cards/

Step-by-step explanation:

Answer:

V = π r^2 h

Step-by-step explanation:

Help me solve this problem please

Answers

The last two choices.

Supplementary and linear

72 is 45% of which number?
A. 45
B. 72
C. 144
D. 160

Answers

72 is 45% of 160. Lmk if u need more help

The number which will give 72 as its 45% will be 160 .

Given,

72 is 45% of which number .

Here,

Let the number be x .

Now forming the equation to ger the desired value of x .

45 % of x = 72

45/100 of x = 72

9/20 of x = 72

x/20 = 8

x = 160 .

Thus the number whose 45% is 72 is 160 .

Know more about percentages,

https://brainly.com/question/23418123

#SPJ6

What are all the zeros of the function f(x) = 4x2 + 8x + 3?
Please help!!

Answers

X= 3 on top and f - 16 on the bottom!

help please!!!!!!! (i will give you the points) find BC

Answers

i think the answer is B

4 grams for every 3/4 servings find the unit rate

Answers

The unit rate is 5 1/3 grams per serving.
To find the unit rate, we can use the rule of three. If 4 grams are equivalent to 3/4 serving, how much grams would be 1 serving? Therefore, the unit rate is 5 1/3 grams per servin

Answer:

5 1/3.

Step-by-step explanation:

Unit rate = 4 / 3/4

= 4 * 4/3

= 16/3

= 5 1/3.

1 more pls helppppppp

Answers

Answer:

A? I think but also it may not be but that's what I think good luck

Cara makes a fruit drink using
apples and oranges. For every 1 apple she uses 3 oranges. She uses 20 fruits altogether. How many oranges does she use?

Answers

Answer:

15 oranges

Step-by-step explanation:

5×1=5

5×3=15

£360 is shared between Chloe and Denesh. The ratio Abby gets to the ratio Ben gets us 2:7 Chloe and denesh each get 1:5 times the amount Abby gets. Work out the amount of money Ben gets

Answers

Answer:

£210

Step-by-step explanation:

I think i just worked it out in my head

Answer:

£210

Step-by-step explanation:

Let amount that abby gets

Given that

Amount of chole + amount of Danesh of abby

Find the value of BC

Answers

Answer: BC=3

Step-by-step explanation: Set the two side lengths equal to each other and solve.

Answer:

BC = 20 units.

Step-by-step explanation:

This triangle has 3 equal sides.

so: -y + 23 = 6y + 2

23 - 2 = 6y + y

21 = 7y

y = 3.

So each side is 6(3) + 2 = 20 units long.

Drag a graph to each category based on the slope of the graph.

Answers

Answer:

hope this helps!!...the last one is the last box that's at the top

Step-by-step explanation:

The slope of a graph is the rate of change of the graph

Graphs 3 has a slope greater than 1Graph 2 has a slope less than 0Graph 4 has a slope equal to 0

When the y values of a graph with the x values, the graph will have a positive slope.

From the figures, graph 3 follows the above highlight.

Hence, graph 3 has a slope that is greater than 1

When the y values of a graph decreases, as the x values increases, the graph will have a negative slope.

From the figures, graph 2 follow the above highlight.

Hence, graph 2 has a slope that is less than 0

A graph with a horizontal line will have its slope to be 0.

Hence, graph 4 has a slope equal to 0

Answers

Answer:

372

74.4

Step-by-step explanation:

A. Total marks scored by Harman = maths + science + English + history + Sanskrit

= 86 + 74 + 67 + 56 + 89

= 372

Total marks scored by Harman = 372

B. Average scored by Harman = Total marks scored by Harman / Number of subject

= 372 / 5

= 74.4

Average scored by Harman = 74.4

C. Highest score obtained for science = Disk ha

= 87

D. Lowest score obtained by Ankur = science and Sanskrit

= 67

He scored the same mark in both science and Sanskrit

Lowest score obtained by Ankur = 67

explain how you do it

Answers

Answer:

66MPH

Step-by-step explanation:

First you would add up all three amounts of miles, so 177+188+163 to get 528. Then you would divide 528 by 8 to get the average MPH, which would be 66MPH.

GUYS QUICK IT DUE AT 10:15
Tyrone wants to know how much wrapping paper is needed to cover a box with the dimensions shown.

What is the surface area of the box?

Answers

Answer:

Step-by-step explanation:

if i get it wrong sorry :(

what does 2+3=8-4 im trying to do the work btu i dont know how to

Answers

Answer:

5=4

Step-by-step explanation:

Use pemdas

Estimate how many times larger 6.1 x 1

07

is than 2.1 x 1

0−4

.

Estimate how many times larger 1.9 x 1

0−8

is than 4.2 x 1

0−13
i need help.
.

Answers

1) 4
2) 2

Pretty sure thats right

What is the end behavior of f(x)

Answers

The third one!!

Hope this helps

What is 305.5 divided by 1/100?

Answers

Answer:

305.5 divided by 1/100= 3.055

Diego runs for 32 seconds at -8.1 meters per seconds. What is his finish point?

Answers

Answer:

i thinks is -40.1

Step-by-step explanation:

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