Answer:
65
Step-by-step explanation:
Answer:
Step-by-step explanation:
a)area A=pi r^2
rate of change of area =dA/dt =2 pi r dr/dt
given dr/dt =25 ,r =50
rate of change of area =dA/dt =2 pi *50 *25 =2500pi=7854
area growing 7854 cm2/s
b)area A=pi r^2
rate of change of area =dA/dt =2 pi r dr/dt
given dr/dt =25 ,A =64
pi r^2 =64
=>r =8/√pi
rate of change of area =dA/dt =2 pi *(8/√pi) *25 =400√pi=708.98
area growing 708.98 cm2/s
Answer:
$126000
Step-by-step explanation:
Gross salary per month = $10500
Gross salary per annum
= Gross salary per month × 12
= $10500 × 12
= $126000
Answer:
39
Step-by-step explanation:
4 x 1 x 3 + 3 x 1 x 2 + 7 x 3
4 x 3 + 3 x 1 x 2 + 7 x 3
12 + 3 x 1 x 2 + 7 x 3
12 + 3 x 2 + 7 x 3
12 + 6 + 7 x 3
12 + 6 + 21
39
Answer:
The answer you are looking for is the part d
