Answer:
the radius is 2.38
Step-by-step explanation:
use the formula c=2pi r
Answer:

Step-by-step explanation:
we have
------> equation A
------> equation B
Remember that
The solution of the system of equation is the intersection point both graphs
Using a graphing tool
see the attached figure
The intersection point is 
Answer:
The second one or B
Step-by-step explanation:
1/4 = 0.25 then 0.55 then 79% = 0.79
Answer:
welp i got -2x+89
Step-by-step explanation:
Answer:

Step-by-step explanation:
we would like to figure out the derivative of the following:

to do so, let,

By simplifying we acquire:

use law of exponent which yields:

take derivative in both sides:

use sum derivation rule which yields:

By constant derivation we acquire:

use exponent rule of derivation which yields:

simplify exponent:

two negatives make positive so,

<h3>further simplification if needed:</h3>
by law of exponent we acquire:

simplify addition:

and we are done!