Answer:
Slope = 7.2 g/mL
Step-by-step explanation:
Density = mass/volume
Density is also the slope of the relationship between mass and volume.
When a graph between mass and volume is plotted, its slope gives the density of the object.
If the density is 7.2 g/mL, it would mean that the slope is 7.2 g/mL. Hence, this is the required solution.
We have been given that at a customer service call center for a large company, the number of calls received per hour is normally distributed with a mean of 150 calls and a standard deviation of 5 calls. We are asked to find the probability that during a given hour of the day there will be between 146 calls and 163 calls.
First of all, we will use z-score formula to find z-score corresponding to 146 and 163.







Our next step is to find percentage of data scores falls between both z-scores.

Using normal distribution table, we will get:


Let us convert our answer into percentage.

Upon rounding our answer to nearest thousandths, we will get:

Therefore, the probability that during a given hour of the day there will be between 146 calls and 163 calls is approximately
.
Answer:
<u>y= -17</u>
Step-by-step explanation:
In order to solve for y you need to get y by itself on one side of the equation.
This is very simple and all you need to do is divide each side by -2.

/-2 /-2
<u>y= -17</u>
34 divided by -2 is -17