For #16, it can be assume that the two angles are linear, so set them both equal to 90 (9x+x-10=90) and solve for x. Once you have x, plug it into the equations to find the measure of both angles. If both your final answers are added, they should equal 180. If not, go back and try to find where you messed up.
Step-by-step explanation:
The eqn is
3x+4y=2
slope=-xcoeff/ycoeff
m=-3/4
the eqn is
y-y1=m(x-x1)
y+1=-3/4(x-4)
4y+4=-3x+12
3x+4y=8
Answer:
We are 90% confident that the population mean number of children per adult is between 1.80 and 1.94.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 1.87 - 0.07 = 1.80 children
The upper end of the interval is the sample mean added to M. So it is 1.87 + 0.07 = 1.94 children.
We are 90% confident that the population mean number of children per adult is between 1.80 and 1.94.
Answer:
F. 5(12)(7)
Step-by-step explanation:
V=L×W×H
V=7×5×12
=F. V=5(7)(12)
Answer:
Substitute different values of x in y=3x and get corresponding y coordinates.
Substitute different values of x in y=3x and get corresponding y coordinates.Such as (0,0),(1,3),(2,6),(−1,−3),(−2,−6)
Substitute different values of x in y=3x and get corresponding y coordinates.Such as (0,0),(1,3),(2,6),(−1,−3),(−2,−6)Now, when x=−2 then y=−6 .