Answer:

Step-by-step explanation:
we know that
The area of the circle is equal to

where
D is the diameter of the circle
Solve for D
That means-----> Isolate the variable D
Multiply both sides by 4 to remove the fraction

Divide both sides by π

square root both sides

Rewrite

Simplify

Answer:
39
Step-by-step explanation:
sub 12 for m
12+2(12)+3
12+24+3
36+3
39
hope this will help u
Answer:
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Step-by-step explanation:
The first sequence can be divided by 2 to get the second sequence and the second sequence can be multiplied by 2 to get the first sequence.