Answer:
I think it is f(x)=-3.2x+7.7
Step-by-step explanation:
Write a letter to a friend telling him or her about plans you have for an excursion and inviting him or her to join you.
Answer:
Cake B
Step-by-step explanation:
If you pick Cake A, you'd get the following:
= ~ 28 square inches for you
With Cake B:
square inches for you
Answer: -1.5
Step-by-step explanation:
When population standard deviation is known, then the formula to find the z-test statistic for population mean is given by :-

, where n= Sample size.
= Population mean
= Sample mean
= Population standard deviation.
As per given , we have
(average infants contracted typhoid each month)

n= 4 (No. of months)
Then , the value of the appropriate test statistic will be :




Hence, the value of the test statistic = -1.5
4b+1 equivalent to -2(b+4)+3