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3 years ago

What is the radius of 15.7 inches

Mathematics

1 answer:

liberstina [14]3 years ago

8 0

What does radius mean

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Twenty-eight slices of pizza cost $12. Approximately how much would 70 slices cost?

Mademuasel [1]

Answer:

$30.

Step-by-step explanation:

70/28 = 2.5

12 x 2.5 = 30

5 0

2 years ago

A coin, having probability p of landing heads, is continually flipped until at least one head and one tail have been flipped. (a

Natali [406]

Answer:

(a)

The probability that you stop at the fifth flip would be

$p^4 (1-p) + (1-p)^4 p$

(b)

The expected numbers of flips needed would be

$\sum\limits_{n=1}^{\infty} n p(1-p)^{n-1} = 1/p$

Therefore, suppose that $p = 0.5$ , then the expected number of flips needed would be 1/0.5 = 2.

Step-by-step explanation:

(a)

Case 1

Imagine that you throw your coin and you get only heads, then you would stop when you get the first tail. So the probability that you stop at the fifth flip would be

$p^4 (1-p)$

Case 2

Imagine that you throw your coin and you get only tails, then you would stop when you get the first head. So the probability that you stop at the fifth flip would be

$(1-p)^4p$

Therefore the probability that you stop at the fifth flip would be

$p^4 (1-p) + (1-p)^4 p$

(b)

The expected numbers of flips needed would be

$\sum\limits_{n=1}^{\infty} n p(1-p)^{n-1} = 1/p$

Therefore, suppose that $p = 0.5$ , then the expected number of flips needed would be 1/0.5 = 2.

7 0

2 years ago

Find The Difference.

PIT_PIT [208]

5 - 1 2/9 = 3 7/9

Hope this helps!

8 0

3 years ago

Derivative of Y=cos^2(3x)

Black_prince [1.1K]

The derivative is -6sin(3x)

4 0

3 years ago

I can’t breathe out my nose rn

anastassius [24]

Answer:

breath out your mouth then

Step-by-step explanation:

5 0

3 years ago