The circumference 1 = π*D=8π
if D=4, the circumference 2 =4π=1/2* the circumference 1
⇒ a is the answer
Answer:
t = 14
Step-by-step explanation:
log (7t + 2) = 2
Raise each side to the power of 10
10 ^log (7t + 2) =10^ 2
7t+2 = 100
Subtract 2 from each side
7t+2-2 = 100-2
7t = 98
Divide each side by 7
7t/7 = 98/7
t = 14
Answer:
Step-by-step explanation:
The area of a rectangle is given by 
, where 
is the length of the rectangle and 
is the width of the rectangle. Therefore, the area of a 20 x 15 rectangle is equal to 
.
Since one bag of fertilizer covers 30 square feet, the farmer needs 
bags of fertilizer.
Add up all the sides only, not the area inside
