Answer:
10
Step-by-step explanation:
By the geometric mean theorem,
- 4/a = a/25
- 100=a² (cross multiply)
- a=10 (square root both sides and take the positive solution)
B? I’m sorry if I got it wrong
Answer: (0.504, 0.556)
Step-by-step explanation:
Given : Sample size : n= 1005
Number of adults stated that they were worried about having enough money to live comfortably in retirement = 531
Then the proportion of adults stated that they were worried about having enough money to live comfortably in retirement :
Significance level :
Critical value :
The confidence interval for population proportion is given by :-
Hence, the 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement = (0.504, 0.556)
Answer:
12x^2-23x-24
Step-by-step explanation:
use foil(first, outside, inside, last):
12x^2-32x+9x-24
simplify(combine like terms):
12x^2-23x-24
Answer:
I believe the answer is C