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3 years ago

What is 7/20 written as a decimal?

Mathematics

1 answer:

Bumek [7]3 years ago

4 0

7/20=0.35
7 divided by 20 is 0.35

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3 years ago

) Suppose that a subset of five balls will be randomly selected from an urn containing amber, blue, and green balls. (a) If the

vazorg [7]

Answer:

0.0023 = 0.23% probability that all 5 balls selected will be the same color

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the balls are selected is not important, which means that the combinations formula is used to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

Desired outcomes:

Either 5 amber from a set of 6, or 5 blue from a set of 5. So

$D = C_{6,5} + C_{5,5} = \frac{6!}{5!1!} + \frac{5!}{5!0!} = 6 + 1 = 7$

Total outcomes:

5 balls selected from a set of 6 + 5 + 4 = 15. So

$T = C_{15,5} = \frac{15!}{5!10!} = 3003$

Probability:

$p = \frac{D}{T} = \frac{7}{3003} = 0.0023$

0.0023 = 0.23% probability that all 5 balls selected will be the same color

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3 years ago

What is the equation for the line in slope-intercept form

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Answer:

y=-2x-4

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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One and six tenths as a decimal

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Answer:

1.6

Step-by-step explanation:

1 and 6/10 = 1.6 as a decimal

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3 years ago

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