Answer: 
Step-by-step explanation:
Given
Zipline begins
in the air
The angle of elevation is 
Assume the length of the cable is l
from the figure, we can write

Answer:
40.82
Step-by-step explanation:
I got this answer by multiplying the diameter by pi.(3.14 was used for pi)
Answer:
A
Step-by-step explanation:
They have to be equal if abc and adc are equal
therefore the answer is A
hows that :D
Probability that a randomly selected adult has an IQ less than 137 is 0.9452
<u>Step-by-step explanation:</u>
<u>Step 1: </u>
Sketch the curve.
The probability that X<137 is equal to the blue area under the curve.
<u>Step 2:
</u>
Since μ=105 and σ=20 we have:
P ( X<137 )=P ( X−μ<137−105 )= P(X−μ/ σ< 137−105/20 )
Since x−μ/σ=Z and 137−105/20=1.6 we have:
P (X<137)=P (Z<1.6)
<u>Step 3: </u>
Use the standard normal table to conclude that:
P (Z<1.6)=0.9452
∴ probability that a randomly selected adult has an IQ less than 137 is 0.9452.