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Liono4ka [1.6K]
3 years ago
12

PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
Gekata [30.6K]3 years ago
7 0
The answer is 12.57 , circumference is pi (3.14) x diameter (which in this case is 4) so the answer is 12.57
sukhopar [10]3 years ago
5 0

Answer:

C = 12.57

Step-by-step explanation:

Circumference formula: C = 2πr

divide 4 by 2

4/2 = 2

plug it in

C = 2π(2)

C = 12.57

You might be interested in
A cube has an edge of 2 feet. The edge is increasing at the rate of 5 feet per minute. Express the volume of the cube as a funct
Agata [3.3K]

Answer:

V(m) = (2 + 5m)^3

Step-by-step explanation:

Given

Solid Shape = Cube

Edge = 2 feet

Increment = 5 feet per minute

Required

Determine volume as a function of minute

From the question, we have that the edge of the cube increases in a minute by 5 feet

<em>This implies that,the edge will increase by 5m feet in m minutes;</em>

Hence,

New\ Edge = 2 + 5m

Volume of a cube is calculated as thus;

Volume = Edge^3

Substitute 2 + 5m for Edge

Volume = (2 + 5m)^3

Represent Volume as a function of m

V(m) = (2 + 5m)^3

4 0
3 years ago
A roller coaster accelerated from rest to 55 m/s by the time it reached the first hill. The roller coaster took 15 seconds to cl
GalinKa [24]

Answer:

I believe the acceleration is 3.66666666667 m/s

Step-by-step explanation:

Acceleration formula: a = vf - vi / t

Initial velocity: 0 (I believe it was 0, as it wasn't moving in the beginning)

Final velocity: 55 m/s

Time: 15 s

Substituting values: 3.66666666667 = 55 - 0 / 15

4 0
3 years ago
Solve for x (3X -8) (x+2)
Oxana [17]

Answer:

(3X -8) (X +2)

=(3X^2 + 6X - 8X -16)

use the quadratic formula

a=3

b=-2

c=-16

therefore your x=8/3 or -2

7 0
3 years ago
PLEASE NO SPAM!!!! I NEED HELP!!!! PLEASE!
ratelena [41]
Using finite difference, the answer is cubic. Apologies if I’m wrong

5 0
2 years ago
Read 2 more answers
PLEASE HELP!!!!!!
Snezhnost [94]

Answer:

x= 5.5, y=6

Step-by-step explanation:

multiply by 2

right on edge

8 0
3 years ago
Read 2 more answers
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