IF there are 30 waves that pass in one second, what is the frequency of that sound?
2 answers:
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Answer: B
<u>Explanation:</u>
rate x time
Chris: 40 x t = 40t
Amy: 60 x t - 2 = 60(t - 2)
Use the distance formula:
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Answer: B
<u>Explanation:</u>
x² - 8x + 19
a=1 b=-8 c=19
Use the Quadratic formula to find the solutions for x:
= 4 ± i√3
Solutions are: Factors are:
x = 4 + i√3 x - (4 + i√3) = 0
x = 4 - i√3 x - (4 - i√3) = 0