2 years ago

(10-4)+20 divided by 10?

Mathematics

1 answer:

Luba_88 [7]2 years ago

6 0

Answer:

Step-by-step explanation:

(10-4)+20/20

6+20/10

6+2

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2 years ago

From a group of 8 volunteers, including Andrew and Karen, 4 people are to be selected at random to organize a charity event. Wha

Helga [31]

Answer:

The correct option is D. 2/7

Step-by-step explanation:

Consider the provided information.

There are 8 volunteers including Andrew and Karen, 4 people are to be selected at random to organize a charity event.

We need to determine the probability Andrew will be among the 4 volunteers selected and Karen will not.

We want to select Andrew and 3 others but not Karen in the group.

Thus, the number of ways to select 3 member out of 8-2=6

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The required probability is:

$\dfrac{^6C_3}{^8C_4}=\dfrac{\frac{6!}{3!3!}}{\frac{8!}{4!4!}}\\\\\\\dfrac{^6C_3}{^8C_4}=\frac{20}{70}\\\\\\\dfrac{^6C_3}{^8C_4}=\dfrac{2}{7}$

Hence, the correct option is D. 2/7

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3 years ago

What is the number of possible outcomes when tossing 6 coins at once

lys-0071 [83]

Your answer would be 64. There are two sides on a coin. 2^6 would be 64.

Hope this helps.

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2 years ago

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