Answer:
10
Step-by-step explanation:
5 times 2 is 10.
Variables!!!!
You can simply divide 2 by 5 and you will get 0.4
Answer: 1.8446
Step-by-step explanation:
Given claim : 
Sample size : 
Sample mean : 
Standard deviation : 
The test statistic for population mean is given by :-
Hence, the value of test statistic = 1.8446
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
