We have been given that the total number of households she surveyed = 150
Now, out of 150, 35 of them said they turn out the lights each year on Halloween.
Now, in order to find the percentage of households that turn out the lights each year on Halloween, we will divide 35 by 150 and then multiply the result with 10.
Thus, we the required percentage is given by
Therefore, to nearest percent is 23%.
Hence, the estimated population proportion of households that turn out the lights each year on Halloween is 23%
D= (12)/(3)(4)
d = 12/12
d = 1
F(x) has two real roots, -2 and +1. Those are the only x-intercepts.
f(x) has 2 x-intercepts. hope this helps
Answer:
f(7)= -7
Step-by-step explanation:
f(x)= -2x+x f(7) which basically means x=7
= -2(7)+7
= -14+7
f(7) = -7
Hope this helps :)
Answer:
a) C
b) A
Step-by-step explanation:
The wingspan is the dependent variable while the bird height is the independent variable.
a) Since R2 is the dependent variable, it can be expressed by the independent variable. An R2 of 93% represents 93% of the variation in the wingspan which can be explained by using the birds height. This means that the appropriateness of the model should not be determined by R2 but by using a scatter plot.
b) The model predicts the value of wingspan using the value of bird height. We cannot say that the bird 10 inches tall has a wingspan if 17 inches instead, we say that the wingspan of the bird which is 10 inches tall is 17 inches.
It is therefore possible that the wing span is not exactly 17 inches
