A cylinder has a volume of 288pie cubic meters and a height of 9 meters. What is the area of the base?

2 answers:

7 0

  V = πr²h
  288 = 3.14(r²)(9)
  288 = 3.14(9r²)
  288 = 28.26r²
28.26 28.26
10.19 ≈ r²
  3.19 ≈ r

B = πr²
B = 3.14(3.19)²
B = 3.14(10.19)
B = 31.9966

melomori [17]3 years ago

3 0

Answer:

Step-by-step explanation:

You might be interested in

Solve 3[-x + (2 x + 1)] = x - 1.

Marrrta [24]

Answer:

x= -2

Step-by-step explanation:

-3x+6x+3=x-1

3x-x= -1-3

2x= -4

x= -2

6 0

4 years ago

Read 2 more answers

Compound interest of $1000 is invested at 10% compounded continuously, the future value s at any time t in years is given by s=1

crimeas [40]

Answer: 6.93 years

Step-by-step explanation:

Given

Rate of interest is $r=10\%$

Future value is given by $s=1000e^{0.1t}$

For the investment to double itself, i.e. $s=2000$

$\Rightarrow 2000=1000e^{0.1t}\\\Rightarrow 2=e^{0.1t}\\\\\text{Taking log both sides}\\\\\Rightarrow \ln 2=0.1t\\\\\Rightarrow t=\dfrac{\ln 2}{0.1}\\\\\Rightarrow t=6.93\ \text{years}$