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erma4kov [3.2K]
3 years ago
12

For the function y= -1+6 cos ( 2π/7(x-5) ), what is the maximum value​

Mathematics
1 answer:
RUDIKE [14]3 years ago
5 0

Answer:

5

Step-by-step explanation:

I'm assuming you want to find the maximum value of y

recall that for any cosine function y = A cos (  g(x) ), where g(x) is any arbitrary function, that A represents the amplitude of the cosine function.

By definition, the amplitude is the maximum the value which the cosine term can take.

hence for your expression:

y= -1 + 6 cos ( 2π/7(x-5) )

max value of y = -1 + (max value of cosine function)

max value of y = -1 + (amplitude of cosine function)

max value of y = -1 + 6 = 5

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a 400 g of a liquid of density 1.6g/cm3 is made from mixing liquids of density 1.2g/cm3 and 1.8g/cm3 find the mass of the liquid
gogolik [260]

Answer:

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Step-by-step explanation:

Let the:

Mass of 1.2g/cm³ of liquid = x

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x + y = 400........ Equation 1

x = 400 - y

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We substitute, 400 - y for x in Equation 2

1.2(400 - y) + 1.8y = 640

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Answer:

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