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Andreas93 [3]
3 years ago
6

The frequency of a hum that is generated by an engine is 270 hz. It starts at zero, which function would best describe the frequ

ency over time
Mathematics
1 answer:
lozanna [386]3 years ago
3 0

Answer: our function is:

f(x) = A*sin(2*pi*270s*x)

Step-by-step explanation:

We have that the frequency of a given engine is 270 hz, it starts at 0, so we may represent this with a sin function (because sin(0) = 0)

Then we could use the function

f(x) = A*sin(c*x)

A is the maximum intensity of the hum, and c depends on te frequency, we know that the period of a sin function is 2pi, then:

f = 270/s

T = 1/270s

c*1/270s = 2pi

c = 2*pi*270s

Then our function is:

f(x) = A*sin(2*pi*270s*x)

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Answer:

the answer is  

Step-by-step explanation:

The proportion of coconut milk in the cocktail is  ml for every 15 ml of orange juice.

Proportion shows the fractional composition of a given quantity or substance.

So that:

orange juice = 15 ml

contents of the orange juice;

apple juice = 25 ml

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total              = 35 ml

So that;

the fraction of apple juice in the orange juice =  x 15

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the fraction of apple juice in the orange juice =  ml

Also,

the fraction of coconut juice in the orange juice =  x 15

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the fraction of coconut juice in the orange juice =  ml

Therefore, the proportion of the cocktail that is coconut milk is: for every 15 ml of orange juice, then  ml of coconut juice is required.

3 0
2 years ago
Raphael graphed the system of equations shown. y = – 3 y = x – 0.8 What is the best approximation for the solution to this syste
Ber [7]
Given ---›

y = -3

&

y = x - 0.8

So,
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=> x = -3 + 0.8

=> x = -2.2

Therefore, the best approximation for the solution to this system of equations is = (–2.2, –3)
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3 years ago
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PLEASE HELP!!! GIVING BRAINLIEST
Anvisha [2.4K]

Answer:Column one answers:

1: 490

2:396

3.18

4.10

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7 0
3 years ago
Which terms and 45p^4q have a GCF of 9p^3?
vredina [299]

Answer:

The answer is 18p^3r and 63p^3

Step-by-step explanation:

G.C.F of 18p^3 r and  45p^4q is = 9p^3

18p^3r = 2*3*3*p*p*p*r

45p^4q = 3*3*5*p*p*p*q

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G.C.F of  63p^3 and  45p^4q is = 9p^3

63p^3 = 3*3*7*p*p*p

45p^4q = 3*3*5*p*p*p*q

Thus the G.C.F is 3*3*p*p*p = 9p^3

Therefore the answer is 18p^3r and 63p^3....

7 0
3 years ago
Ben earns an annual income of $12,800 a year. The income tax he has to pay is 15%. What is the amount of income tax in dollars a
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Answer:

$

1

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Explanation:

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×

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Step-by-step explanation:

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3 years ago
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