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
Klio2033 [76]
4 years ago
12

A(r) is a function that gives the area of a circle with radius r. It can be written in equation form as A(r) = 3.14r2. What is t

he value of A(4)?
A. 157.75
B. 25.12
C. 19.14
D. 50.24
Mathematics
1 answer:
mylen [45]4 years ago
6 0
3.14x16 or 50.24 is the answer
..............
You might be interested in
Label 1/4 on the number line. Label 1/2 on the number line .
KIM [24]

Answer:

it goes 0 then 1/4 in the first notch 1/2 in the second notch 3/4 in the third notch then the number 1 on the fourth

Step-by-step explanation:

Hope that helps.

5 0
3 years ago
5 (2+5)<br> 2<br> 2<br> 715cm?<br> value of h
kirill115 [55]

Answer:

Is this a complete question?

7 0
3 years ago
The most common women’s shoe size in the U.S. is reported to be an 8 1/2 . A shoe store uses a table like the one below to decid
vesna_86 [32]

Answer:

the answer is caca

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
The quantity r varies jointly with t and u and inversely with s when t= -12, u= -7, and s= -4, r= -126. Find r when t= -8, u= 8,
vichka [17]

Answer:

r = 64

Step-by-step explanation:

r = (k*t*u)/s

Where,

k = constant of proportionality

t = -12,

u= -7,

s= -4,

r= -126.

r = (k*t*u)/s

-126 = (k*-12*-7)/-4

-126 * -4 = 84k

504 = 84k

k = 504/84

k = 6

Find r when t= -8, u= 8, and s= -6.

r = (k*t*u)/s

= (6*-8*8) / -6

= -384 / -6

= 64

r = 64

6 0
3 years ago
What is the surface area of the box if it is scaled up by a factor of 10? The surface area is: 736 cm. Lenght: 12 cm. Width: 4 c
grandymaker [24]

739*12*4*20=71,000 divded by 2=36,000

6 0
4 years ago
Other questions:
  • Potatoes sell for $.25 per pound at the produce market.Write an equation for the cost c of p pounds of potatoes
    8·2 answers
  • When a scatterplot is created from a table of values, which statement is correct?
    5·2 answers
  • Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah a total
    7·1 answer
  • What are the x- and y-coordinates of point C, which partitions the directed line segment from A to B into the ratio 5:8? Round t
    8·2 answers
  • Plz help with the correct answer please
    7·1 answer
  • 5 customers approach your truck each with a coupon for 2 dollars. The total amount of money they will spend can be represented b
    6·1 answer
  • A solid sphere is cut into 4 equal wedges the volume of each wedge is v=1/3r3 solve the volume for r
    8·1 answer
  • Write the fraction<br> 2/7<br> as an equivalent fraction with the given denominator 28.
    5·1 answer
  • Mathew finds the deepest part of the pond to be 185 meters
    15·1 answer
  • Brownies are sold at a bake sale.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!