3 years ago

Which of the following numbers can be expressed as a decimal that terminates?

Mathematics

1 answer:

ICE Princess25 [194]3 years ago

7 0

The answer to this question is C.

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maw [93]

Answer:

If the equation is 3^x=n (it isnt showing up properly)

Part A: any number greater than 1 will work. Say 2.

Part B: any number less than or equal to 1.

Step-by-step explanation:

If you set x=2, 3^2=9 9>3

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Keith_Richards [23]

Answer:

P(X = 12) = 0.0064.

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

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

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

And p is the probability of X happening.

In this problem we have that:

$n = 30, p = 0.2$

We want P(X = 12). So

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