Question 5<br> How to solve it

State that dgree of the term -6x²y

vladimir2022 [97]

I think it’s -6 but I would check with someone else too lol

3 0

4 years ago

What is the range of the function f(x)=3.2x for the domain {-4,-2,0,2,4}

just olya [345]

Answer:

Option A. $\{-12.8,-6.4,0,6.4,12.8\}$

Step-by-step explanation:

we have

$f(x)=3.2x$

we know that

To find the range, substitute each value of x of the domain and find the value of f(x)

so

For $x=-4$ -----> $f(-4)=3.2(-4)=-12.8$

For $x=-2$ -----> $f(-2)=3.2(-2)=-6.4$

For $x=0$ -----> $f(0)=3.2(0)=0$

For $x=2$ -----> $f(2)=3.2(2)=6.4$

For $x=4$ -----> $f(4)=3.2(-4)=12.8$

therefore

The range is $\{-12.8,-6.4,0,6.4,12.8\}$

5 0

3 years ago

An art history professor assigns letter grades on a test according to the following scheme. A: Top 13%13% of scores B: Scores be

amm1812

Answer:

The numerical limits for a B grade is between 81 and 89.

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:

$\mu = 79.7, \sigma = 8.4$