4 years ago

Plz help,its really easy:its mapping diagrams,fill in the blanks

Mathematics

1 answer:

posledela4 years ago

8 0

Answer:

2->72

3->71

4 is the missing x value

You might be interested in

Why does the quadratic formula work all the time

Monica [59]

the quadratic formula work all the time because it is suitable for every equation.

3 0

3 years ago

3(x+4)=18+x<br> please show work

rewona [7]

If X = 1 rhen it would be 3x5 so it would be 15 and for the other side X would have to be -3

3 0

3 years ago

Read 2 more answers

foot locker uses sales per square foot as a measure of store productivity last year the mean annual sales per square foot was 39

lord [1]

Answer:

There is a 82% probability that th esample mean annual sales per square foot is at least $384.

Step-by-step explanation:

We have a population with mean 390 and standard deviation 45.83.

Samples of size n=49 are taken.

The parameters of the sampling distribution are:

$\mu_s=\mu=390\\\\ \sigma_s=\dfrac{\sigma}{\sqrt{n}}=\dfrac{45.83}{\sqrt{49}}=\dfrac{45.83}{7}=6.547$

First, we have to calculate the z-score that satisfies:

$P(z>z^*)=0.82$

This z-score, looked up in a standard normal distribution table, is z=-0.915.

Then, we can calculate the sample mean as:

$M=\mu_s+z\cdot\sigma_s=390+(-0.915)\cdot 6.547=390-6=384$

There is a 82% probability that th esample mean annual sales per square foot is at least $384.

3 0

3 years ago

Find the area of a uneven leaf

Anestetic [448]

The area is 54. It's length times width or you can just count all the squares.

8 0

4 years ago

A 40-foot-tall flagpole casts a shadow that is 8 ft long. find the length, in feet, of a shadow cast by a nearby man who is 6 fe

Ray Of Light [21]

1.2 feet is the size of the shadow of a 6 foot tall man.

6 0

4 years ago

Plz help,its really easy:its mapping diagrams,fill in the blanks​

Plz help,its really easy:its mapping diagrams,fill in the blanks