The heights of women in the united states are normally distributed with a mean of 64 inches and a standard deviation of 2.75 inc
hes. the percent of women whose heights are between 64 and 69.5 inches, to the nearest whole percent, is
a. 6
b. 48
c. 68
d. 95
a. 6
b. 48
c. 68
d. 95
1 answer:
You might be interested in
Answer:
x = - 2, x = 9
Step-by-step explanation:
Given
f(x) =
The denominator of f(x) cannot be zero as this would make f(x) undefined.
Equating the denominator to zero and solving gives the values that x cannot be.
x² - 7x - 18 = 0
(x - 9)(x + 2) = 0
Equate each factor to zero and solve for x
x + 2 = 0 ⇒ x = - 2
x - 9 = 0 ⇒ x = 9
The excluded values are x = - 2, x = 9
