1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SSSSS [86.1K]
3 years ago
9

A(r) is a function that gives the area of ta circle with the radius r. It can be written in an equation form as A(r)=3.14r^2. wh

at is the value of A(5)
Mathematics
1 answer:
notsponge [240]3 years ago
4 0
A(r)=3.14r^2, when r=5

A(5)=3.14(5^2)

A(5)=3.14(25)

A(5)=78.5 u^2
You might be interested in
Y=f(x)=2x find f(x) when x=2
Rainbow [258]

Y=f(x)=2x find f(x) when x=2

Plug in

f(2)=2(2)  =4

Answer

4

3 0
4 years ago
Read 2 more answers
Lisa hikes 9 miles in 2 hours. At this rate, how far does she hike in hours?
defon
4.5 miles in 1 hour
7 0
3 years ago
Can you simplify 7/63. ( If you can show your work)
Solnce55 [7]
7/63 can be simplified down to 1/9 because if you were to multiply 7 by 9 you would get 63? or an easier way to do it would be to divide 63 by 7
3 0
3 years ago
Read 2 more answers
Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p. Hint: the
Julli [10]

Answer:

Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p. 16)n = 182, x = 135; 95 percent

✓ 16)n = 182, x = 135; 95 percent sample proportion: p-hat = 135/182 = 0.74 E = 1.96*sqrt[0.74*0.26/182] = 0.0637 95% CI: 0.74-0.0637 < p < …

6 0
3 years ago
The density of ethanol is around 0.8g/mL. What is the mass of 20mL of ethanol?
Harman [31]

Answer: 0.7893g//mL

If 20 mL of ethanol (density =0.7893g//mL) is mixed with 40mL water (density = 0.9971g//mL)

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Segment endpoints: (0,0) and (0,20) midpoint
    10·1 answer
  • What is the volume of a sphere when the diameter is 10​
    12·2 answers
  • Which is heavier: a ton of bricks or a ton of feathers (My points I still have 1600 points to gooo)
    14·2 answers
  • Sub to me at kalelowsdoes12 and I will sub to you on 5 accounts anyone
    14·2 answers
  • Jeff wants to build a barn that is 50 ] feet long by 204 feet wide. What is the area of the barn in square feet?
    14·1 answer
  • The workers at the help line answers 24 phone calls every 2hours how many phone calls do the workers answer in 8hours
    8·1 answer
  • Select the correct answer.<br> Which graph represents a proportional relationship?
    12·1 answer
  • What is the value of 7742
    10·1 answer
  • What is k(-8) when given the function<br> k(x) = x +5 – 2x2?
    14·1 answer
  • Q.3 Write the factors of 28 in circle A and the factors of 32 in circle B. Write
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!