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4 years ago

Find the cosine function that is represented in the graph.

Mathematics

1 answer:

Ad libitum [116K]4 years ago

4 0

Answer:

The cosine function that is represented in the graph is:

Option B. f(x)=cos (x-pi/4)-1

Step-by-step explanation:

The parent function is cos x.

cos x at x=0 has the maximum value 1.

The graph is shifted to the right (x-pi/4) with a maximum value 0 at x=pi/4, then the graph is shifted downward 1 unit.

Then f(x)=cos (x-pi/4)-1

Please, see the attached graph:

The blue line is the parent function y=cos x

The red line is the graph given

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bekas [8.4K]

Answer:

Step-by-step explanation:

Well if y=3 then the equation is 2*3-6

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3 years ago

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3 years ago

If the length of each side of a cube is doubled, is the surface area doubled? Use an example to support your answer

sashaice [31]

If a = 6l^2 is the total area of the surface of a cube with sides l length and A = 6 (2l)^2 is that area with 2l sides, then we take the ratio A/a = 6 (2l)^2/(6 l^2) = (2l)^2/l^2 = 4l^2/l^2 = 4. So that A = 4a. And that explicitly shows that the area A with 2l for sides is 4 X a, where a is the area when l is the side length.

<span>Using ratios to compare values of the same thing is the smart way to solve this kind of problem, because many of the values, like the 6 in both, cancel out. In fact, because we found that A/a = (2l/l)^2 we say in general that the area of a cube varies with the square of the length of its side.

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4 years ago

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lidiya [134]

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Step-by-step explanation:

because it just is

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3 years ago

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dalvyx [7]

Answer:

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Step-by-step explanation:

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