A sample of 81 Items is taken from a population with a standard deviation of 45 kilograms. The sample mean is 112 kilograms. What weights are included in the 95% Confidence intervals ?
A. 102 kilograms to 122 kilograms
B. 107 kilograms to 117 kilograms
C. 97 kilograms to 127 kilograms
D. 92 kilograms to 132 kilograms

step-by-step explanation:

if u want da anser kill your teeser ifu hav wun

f(x) = y

f(-3) = -5

step-by-step explanation:

third choice down

step-by-step explanation:

the first inequality is based on the number of adults and campers, and the second inequality is based on the cost of feeding both the adult and the camper.

we know that there is room for 525 people max.   it's ok to have less than 525, but it's not ok to have more than 525, so the inequality is less than or equal to.   the number combination of adults (x) and campers (y) cannot exceed this 525 max.   therefore:

x + y ≤ 525

now we talk about cost.   it costs $9 to feed one adult, so depending upon the number of adults you have (x) depends upon how much it will cost to feed that number of adults.   same with the campers, who cost $5 to feed.   the adults can be represented by 9x and the campers can be represented by 5y.   since the budget cannot exceed 1,200, the second inequality is:

9x + 5y ≤ 1200