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
Korolek [52]
2 years ago
15

The area of a circle = 64π. Find circumference.

Mathematics
1 answer:
Andrew [12]2 years ago
4 0

Answer:

Area = 16π

Step-by-step explanation:

Area of a circle = πr^2

= 64π

= sqrt64

r = 8 because 8 × 8 is 64

Radius = 8

Now, use the circumference equation:

= 2πr

= 2π(8)

= 16π

You might be interested in
An art gallery has 8 new paintings, all the same size, but enough room on the wall for only 6 of them. How many ways can the dir
algol13
There are 8 choices for the first painting on the wall, 7 choices for the second, and so on, down to three choices for the sixth.  Our result is thus 8*7*6*5*4*3=20,160.  C is the correct answer.
5 0
3 years ago
Someone help me with this please. And please explain so I understand this better. Thanks.
svetoff [14.1K]

Answer:

read the explanation, i'm not gonna answer this one for you, but instead I want you to try this on your own.

Step-by-step explanation:

divide the 360 by each percentage, and if you dont know how to do that, there are videos out there, i <em>would</em> explain it <em>but </em>i dont have much time to write all of that. after you get each number from dividing 360 by each percentage <em>individually </em>you will add up the <u>needed</u> numbers. that will give you your answer! have a nice day :D

6 0
2 years ago
20 POINTS Find the diameter?? Pls help I dont know what to do..
Akimi4 [234]

Answer:

Diameter = 19.33

Step-by-step explanation:

Imaging a radius line from O to the endpoints of the 7. call this line R.

Label the part of the vertical line from O to the 90 degree intersection y.

Now you have a right triangle.

Using the Pythagorean theorem:

R² = 7² + y²

also

y = R - 3

substitute for y:

R² = 49 + (R-3)²

R² = 49 + R² - 6R + 9

simplify:

0 = 58 - 6R

6R = 58

R = 9.6667

Diameter = 2(9.6667) = 19.33

7 0
2 years ago
Sum of the numbers m and n decreased by their product; write the algebraic expression​
Oduvanchick [21]
<h3>Answer:   m+n-mn</h3>

You can write mn as m*n

=================================

Explanation:

The sum is the result of adding two or more numbers. Saying the sum of m and n means m+n.

Then we subtract off the product of m and n. The product is the result of multiplying m and n. We say m*n or mn to indicate their product.

Overall, we end up with m+n-mn

8 0
3 years ago
A firecracker shoots up from a hill 160 feet high, with an initial speed of 90 feet per second. Using the formula H(t) = −16t2 +
Masja [62]

When the firecracker hits the ground, H(t) = 0.0 = -16t^2 + 90t + 160 Using the quadratic formula,t = (-90 +- sqrt(90^2 - 4(-16)(160))) / 2(-16)t = -1.42 ort = 7.04

The negative time is extraneous. Therefore,t = 7.04 s.

Seven Seconds is your answer!

3 0
3 years ago
Read 2 more answers
Other questions:
  • -6.56 × 14.2 = !!!!!
    11·1 answer
  • How is multiplying and dividing rational numbers similar<br> to multiplying and dividing integers?
    12·1 answer
  • If the area of a square is numerically twice the perimeter of that square, what is the side of the square?
    6·1 answer
  • Dario’s school has rented several buses to take students on their field trip to visit the Science Museum in the neighboring town
    10·1 answer
  • If A= (0,0) and B = (2,5) what is the appropriate length of AB
    15·2 answers
  • Consider today's stock listing for Enam Telecom, shown below. 52 wk High 52 wk Low Symbol Div. Close Net Change 122.86 64.77 ENM
    7·1 answer
  • Write this number in standard form.12 ten thousands,8 thousands,14 hundreds,7 ones
    11·1 answer
  • NEEDED BY TOMORROW!
    11·1 answer
  • This should help any of you guys who needs the key here
    5·1 answer
  • If : f(x)=x^2, g(x)=x-1. Find (f×g)(x).<br>​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!