9514 1404 393
Answer:
$1200
Step-by-step explanation:
60 attendees is 12 times 5 attendees, so we expect the amount raised to be 12 times $100.
$1200 will be raised for 60 attendees.
You need to show us the full question please
Answer:
The mean of depth is 12.75cm.
The variance of depth is of 13.02 cm².
Step-by-step explanation:
An uniform probability is a case of probability in which each outcome is equally as likely.
For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.
The mean of the uniform distribution is:

The variance of the uniform distribution is given by:

Uniform distribution on the interval (6.5, 19)
This means that: 
So
Mean:

The mean of depth is 12.75cm.
Variance:

The variance of depth is of 13.02 cm².
Answer:
Sin A = 0.6896
Cos A = 0.7241
Tan A = 0.9524
Step-by-step explanation:
Using SOH-CAH-TOA
Sin A = Opposite / Hypotenous
= 20 / 29
= 0.6896
Cos A = Adjacent / Hypotenous
= 21 / 29
= 0.7241
Tan A = Opposite / Adjacent
= 20 / 21
= 0.9524