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Marizza181 [45]
3 years ago
5

Solve for b. −1/3b=9 What is the answer?

Mathematics
2 answers:
Ksivusya [100]3 years ago
5 0
-1/3b = 9
b = 9 * -3
b = -27
zalisa [80]3 years ago
5 0
<span>−1/3b=9
Divide -1/3 on both sides
b= 9 divided by -1/3
Convert the 9 into an improper fraction
b= 9/1 divided by -1/3
Convert the division sign to multiplication while flipping the fraction -1/3 to -3/1
b= 9/1*-3/1
Multiply
Final Answer: b = -27</span>
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Step-by-step explanation:

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Where:

\left | a \right | = Amplitude

2·π/b = The period

c = The phase shift

d = The vertical shift

h = Height of the function

x = The time duration of motion of the wave, t

The given data are;

The amplitude \left | a \right | = 2 feet

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The number of times the wave passes a point in each cycle = 2 times

Therefore;

The time for each complete cycle = 2 × 30 seconds  = 60 seconds

The time for each complete cycle = Period = 2·π/b = 60

b = π/30 =

Taking the phase shift as zero, (moving wave) and the vertical shift as zero (movement about the mean water line), we have

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The cosine function is h = 2·cos((π/30)·t).

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3 years ago
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Known facts:

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Hope that helps!

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