The frequency stays the same and the wavelength decreases.
Answer:
750 people will come in at 15 hours.
Step-by-step explanation:
350 divided by 7=50 50 times 15=750
sorry i don't know the rest
Answer:
b & d
Step-by-step explanation:
Using the assumed values, the volume of the cone is 
<h3>How to determine the volume of the cone?</h3>
The volume of a cone is calculated using:

The parameters are not given.
So, we use the following assumed values
Radius, r = 5
Height, h =10
Using the assumed values, we have:

Evaluate the product

Hence, using the assumed values, the volume of the cone is 
Read more about volumes at:
brainly.com/question/1972490
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Tan 34 = 12/x and then uhm, put 12/tan34 into ur calculator