C) if you multiply it you get w^2 + 7w +11w+77, which is w^2+18w+77
Answer:
0.6604
Step-by-step explanation:
Given that a market research firm knows from historical data that telephone surveys have a 36% response rate.
Sample size of random sample = 280
We know for samples randomly drawn of large size sample proportion follows a normal distribution with mean= sample proportin and std error
=
Substitute p = 0.36 and q = 1-0.36= 0.64
p follows N with mean = 0.36 and std dev =
Using normal distribution values we can find\
Answer:
The constant of variation is 3
Step-by-step explanation:
Given.
And y is directly related to x
∝
Here k is constant of variation
--------------(1)
Put the and value in equation 1.
So, the constant of variation is 3.
C = 15x + 50
let c be $125 since c represents the cost
15x + 50 = 125
15x = 125 - 50
15x = $75
x = 75 ÷ 15
x = 5