Answer:
131.9468915
Step-by-step explanation:
Side length= 6*4*pi
Circles=2(9*pi)
Add them and you get that answer.
Answer:
<u><em>Variable terms:</em></u>
x and y
<u><em>Constant terms:</em></u>
7 and -9
<u><em>Coefficient terms:</em></u>
-5.6 and 24
Step-by-step explanation:
The plumber's daily earnings have a mean of $145 per day with a standard deviation of
$16.50.
We want to find the probability that the plumber earns between $135 and
$175 on a given day, if the daily earnings follow a normal distribution.
That is we want to find P(135 <X<175).
Let us convert to z-scores using

This means that:

We simplify to get:

From the standard n normal distribution table,
P(z<1.82)=0.9656
P(z<-0.61)=0.2709
To find the area between the two z-scores, we subtract to obtain:
P(-0.61<z<1.82)=0.9656-0.2709=0.6947
This means that:

The correct choice is C.
Answer:
None of the above ? (the equation should be y=12)
Step-by-step explanation:
the line parallel to line y=40-1=39 means it's a horizontal line. Which means it's y coordinate is also a constant. Since it pass through (2,12),it means the constant of y is 12.
Answer:
A
Step-by-step explanation: