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2 years ago

You need to Solve 3 math problems

Mathematics

1 answer:

Ad libitum [116K]2 years ago

8 0

The probability of picking a head and a number 4 is 0.25.

<h3>How to calculate the probability?</h3>

Your information is incomplete and the complete information wasn't found. An overview will be given.

A coin has a head and tail and the probability of choosing either is 1/2 or 0.5.

Let the 2 numbers be 1 and 4. The probability of picking either number will be 1/2 or 0.5 as well.

Here, let the probability of picking a head and a number 4 will be:

= 1/2 × 1/2

= 0.5 × 0.5

= 0.25

Learn more about probability on:

brainly.com/question/24756209

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3 years ago

What is the surface area of a cube whose edges are 11 inches long?

Dennis_Churaev [7]

Surface area is the total area of the surface. A cube has 6 surface, and each surface is the same. Each surface is a 11 by 11 square. Therefore there will be 6 11in. x 11in. surfaces. The math would be 11x11x6 =726.

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3 years ago

Read 2 more answers

A medical researcher needs 37 people to test the effectiveness of an experimental drug. If 101 people have volunteered for the t

Rashid [163]

Answer:

The number of ways to select 37 people from 101 is, 5,397,234,129,638,871,133,346,507,775.

Step-by-step explanation:

In mathematics, the procedure to select k items from n distinct items, without replacement, is known as combinations.

The formula to compute the combinations of k items from n is given by the formula:

${n\choose k}=\frac{n!}{k!\cdot (n-k)!}$

Compute the number of ways to select 37 people from 101 as follows:

${101\choose 37}=\frac{101!}{37!\cdot (101-37)!}$

$=\frac{101!}{37!\times 64!}\\\\=\frac{101\times 100\times 99\times....64!}{37!\times 64!}\\\\=5397234129638871133346507775$

Thus, the number of ways to select 37 people from 101 is, 5,397,234,129,638,871,133,346,507,775.

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2 years ago

Plz help me plz f(87) = -590.6 and f(132) = -901.1

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Answer:

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Step-by-step explanation:

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2 years ago

The following sequence of operations is done on a number. Multiply by 5, add 2, subtract 10, multiply by 2. The final result is

strojnjashka [21]

answer the original number is 6

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3 years ago