16 divided by 4 is 4
You just have to memorize that.
Answer:
If solving an equation yields a statement that is true for a single value for the variable, like x = 3, then the equation has one solution. If solving an equation yields a statement that is always true, like 3 = 3, then the equation has infinitely many solutions.
Answer with explanation:
Given : Sample mean =
Standard deviation :
Sample size : n = 36
Claim :
∴
Since the alternative hypothesis is two tail , then the test is two tail test.
By using a z statistic and a 0.05 level of significance. Reject if z < -1.960 or is z> 1.960.
Then , the test static for population mean is given by :-
We reject since . We have statistically significant evidence at to show that the mean amount of garbage per bin is not different from 50.
Answer:
x = -3 and x = -7
Step-by-step explanation:
7 + 2(x+5) = 11
7 + 2x + 10 = 11
2x + 17 = 11
2x = -6
x = -3
7 + -2(x+5) = 11
7 + (-2x) + (-10) = 11
-3 -2x = 11
-2x = 14
x = -7