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3 years ago

If (x + 8) is a factor of f(x), which of the following must be true?

Mathematics

1 answer:

ankoles [38]3 years ago

6 0

Answer:

$x = -8$ is a root.

$f(-8) = 0$ is correct.

Step-by-step explanation:

$(x + 8)$ is a factor of $f(x)$

then it must be

$x = -8$ is a root.

Therefore,

$f(-8) = 0$ is correct.

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The mean and standard deviation when presenting results?

krek1111 [17]

Answer:

Standard deviation is a number used to tell how measurements for a group are spread out from the average (mean), or expected value. A low standard deviation means that most of the numbers are close to the average. A high standard deviation means that the numbers are more spread out.

Step-by-step explanation:

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3 years ago

Please answer this question as soon as possible

Taya2010 [7]

Answer: The graph is shifted vertically, but not horizontally

Step-by-step explanation:

Since the added constant is outside the x term, the constant will only shift the graph vertically.

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3 years ago

On a camping trip with friends, you read about mosquito activity after dark. The number of mosquitos in your campground can be m

Dmitrij [34]

Answer:

The answer is 54

Step-by-step explanation:

If you follow PEMDAS, and x = 3, then you get 54. As an example, x4 is 12. You change X to 3, then multiply (3)4=12. If you follow the rest of the equation, you get 54.

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3 years ago

Read 2 more answers

Billy’s Boat Rentals charges a yearly fee of $105 and $9.50 each time a member wants to rent a boat. Lisa’s Boat Rentals does no

AlekseyPX

Answer:

20 times

Step-by-step explanation:

The equation is...

9.5x+105=14.75x

105=5.25x

20=x

5 0

3 years ago

Read 2 more answers

A videotape store has an average weekly gross of $1,158 with a standard deviation of $120. Let x be the store's gross during a r

statuscvo [17]

Answer:

The number of standard deviations from $1,158 to $1,360 is 1.68.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 1158, \sigma = 120$

The number of standard deviations from $1,158 to $1,360 is:

This is Z when X = 1360. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{1360 - 1158}{120}$

$Z = 1.68$

The number of standard deviations from $1,158 to $1,360 is 1.68.

3 0

3 years ago