Answer: 
Step-by-step explanation:
The confidence interval for population mean is given by :-
Given : Sample size : 
, which is a large sample , so we apply z-test .
Sample mean : 
Standard deviation : 
Significance level : 
Critical value : 
Now, a confidence interval at the 95% level of confidence will be :-
if the other side is 15 inches and the area is 90 square inches:
90/15 = 6
height = 6 inches (A)
Answer:pretty sure its 17
Step-by-step explanation: just added the sides 10 and 7
y - y₁ = m(x - x₁)
y - (-3) = ¹/₂(x - (-4))
y + 3 = ¹/₂(x + 4)
y + 3 = ¹/₂(x) + ¹/₂(4)
y + 3 = ¹/₂x + 2
- 3 - 3
y = ¹/₂x - 1
Answer:
2nd option:
8x+2y=32
x+y=7
Step-by-step explanation:
