Answer:
79°
Step-by-step explanation:
since this figure goes around completely, the sum would be 360°
1 and 3 are equal, so you would multiply 101 by 2
101 × 2 = 202
subtract 202 from 360
360 - 202 = 158
4 and 2 are equal, so divide 158 by 2
158 ÷ 2 = 79
so angle 4 = 79°
Answer:
9a2b2=4c2
the 2s mean squared btw
Step-by-step explanation:
Answer:
A sample size of 35 is needed.
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 the width W as such

In which
is the standard deviation of the population and n is the size of the sample.
How large must the sample size be if the width of the 95% interval for mu is to be 1.0:
We need to find n for which W = 1.
We have that
, then
. So





Rounding up
A sample size of 35 is needed.
6, because the formula for funding area of a trapezoid is base 1 plus base 2 times the height divided by 2. So you plug that in and get [(6+2)4]÷2.
Answer:
Step-by-step explanation:
Diameter=5 inches
Area= π
<u>r is the radius of coaster.</u>
<u>Radius=diameter/2</u>
Substitute the value of D:
r=5/2
Now
Area=π 
Area=π(
)
Area=12.5π sq.inches
<h3><u>If you need to ask any questions, please let me know.</u></h3>