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Jobisdone [24]
3 years ago
12

WILL MARK BRAINLISET!!!!!!! −3 |x| +2x−1 if x=−5

Mathematics
2 answers:
Galina-37 [17]3 years ago
6 0

Answer:

Substitute the value of the variable into the equation and simplify.

−

26

-26

Step-by-step explanation:

Sindrei [870]3 years ago
3 0

We are given the equation

-3|x|+2x-1

We are told that x=-5, so let's substitute that value into the equation:

=-3|-5|+2x-1

The absolute value sign |x| means that any positive number will remain positive and any negative number will be changed to positive in these brackets

-3(5)+2(-5)-1

Now, simplify

=-15-10-1

And simplify again

\boxed{=-26}

This is your answer. Let me know if you need any clarifications, thanks!

~ Padoru

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Answer:

a:  Sample mean: 20, Sample standard deviation: 1.732

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