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3 years ago

11

Evaluate the expression, if possible: √ –25

2 answers:

mrs_skeptik [129]3 years ago

7 0

The square root of a negative number considered an imaginary number. This means it is not a real number.

The answer is A.

dimulka [17.4K]3 years ago

7 0

When a negative sign is under the square root, we are unable to get real numbers back after taking the root.

Thus, the square root of -25 is not a real number (choice A).

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3 years ago

Read 2 more answers

Are all vertical lines parallel?

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4 years ago

In an on-line survey, a school learns that 77 of 100 parents prefer to receive the newsletter electronically. How many paper new

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77% of the school want electronic newsletters, so 23% of the school want physical paper newsletters.

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5 0

3 years ago

The Cinemania theater showed 108 different movies last year. Of those, 15 movies were action movies. Based on this data, what is

natita [175]

Answer:

A reasonable estimate of the probability is equal to $0.1389$ or $13.89\%$

Step-by-step explanation:

we know that

The probability of an event is the ratio of the size of the event space to the size of the sample space.

The size of the sample space is the total number of possible outcomes

The event space is the number of outcomes in the event you are interested in.

so

Let

x------> size of the event space

y-----> size of the sample space

so

$P=\frac{x}{y}$

In this problem we have

$x=15$

$y=108$

substitute

$P=\frac{15}{108}=0.1389$

Convert to percentage

$0.1389*100=13.89\%$

3 0

4 years ago