40% of the apples are not right. Since only 3/5 are right, the that would leave 2/5 to not be right. Since 2/5=40/100, then the answer is 40%. That's just the eay I remember it, hope this helps
Answer:
U = x + 3 and V = 7
Step-by-step explanation:
Let U = x + 3 and V = 7, then:
=> (x + 3)^2 + 14(x + 3) + 49
= (x + 3)^2 + 2*7*(x + 3) + 7^2
= U^2 + 2UV + V^2
= (U + V)^2
(correct)
Answer:
y= 2/3x+3
Step-by-step explanation:
to be parallel they must have the same slope (2/3)
use the ordered pair to get the y-intercept (3)
Answer:
10.44
Step-by-step explanation:
58% of 18 = 10.44
Answer:
a. 2,727
b. (85.6%, 87.6%)
Step-by-step explanation:
The percentage of the adults aged 57 through 85 that used at least one prescription medication = 86.6%
a. The expected number of the 3,149 subjects aged 57 through 85 that used at least one prescription medication = 3,149 × 86.6/100 = 2,727.034 ≈ 2,727 (subjects)
b. The 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication is given as follows;

Where;
= 86.6/100= 0.866
n = 3,149
z = The z-value at 90% confidence level = 1.645
Therefore, we get the following confidence interval of the percentage of adults (rounded to one decimal place as required);


The 90% confidence interval, of the percentage C.I. ≈ (85.6%, 87.6%).