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2 years ago

15

What is the area of a circular cardboard piece needed for the base of a model of a volcano that is 20 centimeters tall and has a

volume of 960 cubic centimeters?

1 answer:

SashulF [63]2 years ago

8 0

Closer to 960 because of the 10 and 20

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suppose x is a non-negative integer valued random variable which follows a probability distribution such that p x=0 = 06 and for

Andre45 [30]

Not sure if the given probability that $X=0$ is 0.06 or 0.6, or something else altogether. I'll just refer to it by the number $p$ .

$\begin{cases}P(X=0)=p\\P(X=i+1)=\frac15P(X=i)&\text{for }i\ge1\end{cases}$

As is, the probability that $X=1$ is indeterminate, so I think you intended to write

$\begin{cases}P(X=0)=p\\P(X=i+1)=\frac15P(X=i)&\text{for }i\ge\boxed{0}\end{cases}$

Then by this definition,

$i=0\implies P(X=1)=\dfrac15P(X=0)=\dfrac p5$

$i=1\implies P(X=2)=\dfrac15P(X=1)=\dfrac p{5^2}$

and so on.

Then

$\boxed{P(X\le2)=P(X=0)+P(X=1)+P(X=2)=p+\dfrac p5+\dfrac p{5^2}=\dfrac{31p}{25}}$

6 0

4 years ago

f(x) = 3x + 10x and g(x) = 4x – 2, find (f – g)(x)

Nana76 [90]

Doing f(x)-g(x), we have 3^x+10x-(4x-2)=3^x+10x-4x+2=3^x+6x+2=D

3 0

4 years ago

Helpppppp meeee please and thank you

schepotkina [342]

Answer:

The bigger the number the more obtuse it is and the smaller the number is the more acute is

Step-by-step explanation:

5 0

3 years ago

Marcus mixes 5 parts white paint with 2 parts red paint to make pink

Finger [1]

Answer:

5

Step-by-step explanation:

parts

5 0

3 years ago

A cone with a volume of 640.23 has a radius of 7. What is the height of the cone?

USPshnik [31]

Answer:

Your answer is about 12.48

Step-by-step explanation:

h = 3(V/pi*r²)

h = 3(640.23/pi*7²)

h = 3(640.23/153.93804)

h = 3(4.157516881)

h = 12.47703

8 0

3 years ago