Step-by-step explanation:
If the lake's level rose 4 inches and in June it rose 2 more inches, the total amount of distance that he rose is (4+2).
Also if the lake's level fell 5 inches in July and 3 more inches in August as a result of no rain, then the total amount of fall will be (5+3).
Change in height of the lake = total rise in distance - Total fall in distance
Change in height of the lake = (4+2) - (5+3) = (5+3) - (4+2) {commutative law}
open the parenthesis
(4+2) - (5+3)= 4+2-5-3 (note that minus times plus will give minus)
<em>Hence the expressions that best describe this situation are;</em>
1. (4+2) - (5+3)
2. (5+3)-(4+2)
3. (4+2) - 5 -3
Putting this into an equation looks like this:
435 - 32<em>x</em> = 179
-32<em>x</em> = -256
<em>x</em> = 8
The answer <em>is</em> 8. Well done.
Answer:
Step-by-step explanation:
We have been given that the The annual salaries of all employees at a financial company are normally distributed with a mean of $34,000 and a standard deviation of $4,000.
To solve our given problem we will use z-score formula.
where,
,
,
,
Upon substituting our given values in z-score formula we will get,
Therefore, the z-score of a company employee who makes an annual salary of $54,000 is 5.
