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3 years ago

What is the vale of f(-4) f(x)=5+2|x| f(-4)=

Mathematics

1 answer:

N76 [4]3 years ago

7 0

Answer: f(-4) = 13

Put the value of x = -4 to the equation of the function:

f(x) = 5 + 2|x|

f(-4) = 5 + 2|-4| = 5 + 2(4) = 5 + 8 = 13

|a| = a for a ≥ 0

examples: |3| = 3, |0.5| = 0.5, |123| = 123

|a| = -a for a < 0

examples: |-3| = -(-3) = 3, |-0.5| = -(-0.5) = 0.5, |-123| = 123

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GarryVolchara [31]

$\text{The minute hand of a clock is 9 inches long.}\\
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3 years ago

Help! For 10 points. I did it and got a ridiculous answer.

weeeeeb [17]

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3 years ago

A population has a mean muequals160 and a standard deviation sigmaequals20. Find the mean and standard deviation of the sampling

hoa [83]

Answer:

Mean 160

Standard deviation 2.63

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sample means with size n of at least 30 can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$

In this problem, we have that:

$\mu = 160, \sigma = 20$

Find the mean and standard deviation of the sampling distribution of sample means with sample size n = 58.

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4 years ago

Peter threw the football 72 feet. How many yards did he throw the football ?

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3 years ago

Which is NOT a multiple of 15?

PilotLPTM [1.2K]

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5 0

3 years ago

Read 2 more answers