Answer:
18.3125
18.5635
18 13/16
Step-by-step explanation:
Answer: last option.
Step-by-step explanation:
According to the Product of powers property, you have:

As you can see, when you can add the exponents when you have powers with equal base.
Then,
and
do not have the same base, therefore, the exponents can't be added.
Therefore, Eli is incorrect, because he added the exponents even though the bases are not the same.
Answer:

Step-by-step explanation:








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hope it helps...
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Answer:
option c. Alternate interior angles
Answer:
51.72 cm.
Step-by-step explanation:
We have been given that a pipe that is open at both ends has a fundamental frequency of 320 Hz when the speed of sound in air is 331 m/s. We are asked to find the length of the pipe.
First of all, we will find the wavelength using following formula.


We know that Hz is equal to
.




Length of the pipe would be half of the wave-length.

Since the length of pipe is in meters, so we will convert it into cm.
1 m = 100 cm

Therefore, the length of the pipe would be 51.72 cm.