<u>Answer</u>:
1) f(x) = -1/2x+1
I'm sorry I don't know the 2nd one...
<u>Step-by-step explanation:</u>
The y-intercept is always plotted first. from there, you go down one, and to the right too. and so one, and in reverse, up one, and left two.
Answer:
The margin of error for a 90% confidence interval is 16.4
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 25
Standard deviation = 50

Margin of error =

Putting the values, we get,

Thus, the margin of error for a 90% confidence interval is 16.4
Answer:
When x = -2 or when x = 7
Step-by-step explanation:
x+2 is a factor in the denominator. If x = -2, the factor becomes zero.
x-7 is a factor in the denominator. If x = 7, the factor becomes zero.
We can't have zero as a factor in a denominator because division by zero is not defined. It doesn't have any meaning.
Answer:
216m^3
Step-by-step explanation:
find the area of the face 12m
times the face by the length
18×12=216