You need to solve for Z
First:
Add 2 to each side of the inequality.
You get 5z>-4
Second:
Divide both sides by 5 and get
z>-4/5
Your answer is:
z>-4/5
Or if you need it in decimal form
z>-.8
The root sof this quadratic equation are -4 and 2.5.
The roots of any quadratic can be found by using the quadratic equation. The equation is below for you.

In this equation you use the number attached to x^2 as the a, which in this case is -2. The number attached to x as b, which is in this case -3. And the number at the end as c, which is 20. From there you solve for the answers.



Now you separate and get the two separate answers. First the positive.


4
Now the negative


-2.5
Answer:
The observed tumor counts for the two populations of mice are:
Type A mice = 10 * 12 = 120 counts
Type B mice = 13 * 12 = 156 counts
Step-by-step explanation:
Since type B mice are related to type A mice and given that type A mice have tumor counts that are approximately Poisson-distributed with a mean of 12, we can then assume that the mean of type A mice tumor count rate is equal to the mean of type B mice tumor count rate.
This is because the Poisson distribution can be used to approximate the the mean and variance of unknown data (type B mice count rate) using known data (type A mice tumor count rate). And the Poisson distribution gives the probability of an occurrence within a specified time interval.
Answer:
The statement is False.
Step-by-step explanation:
Consider the provided information.
If a linear system has four equations and seven variables, then it must have infinitely many solutions.
We need to determine the above statement is true or false.
The above statement is false, it could be inconsistent, and therefore have no solutions,
For example:

Hence, there is no solution.
The New pay in current year is = $ 2225
The old pay in the last year was = $ 2176
percentage (%) increase formula = (new value- old value ) *100 / old value
which becomes,,

which equals to 2.3% .
Hence, the average net pay per month increased is 2.3% .