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3 years ago

6

NEED HELP ASAP...

1 answer:

crimeas [40]3 years ago

3 0

1) The dependent variable is the total cost.
2) The perimeter is 36 inches.

The dependent variable is the one that gets changed by the other one. In this case, the total cost gets changed by the amount of fabric bought.

To find the perimeter:

Since the ratios of the side length to perimeter is the same, we set up the ratio:
2/8 = 9/x

Cross multiply:
2*x = 8*9
2x = 72

Divide both sides by 2:
2x/2 = 72/2
x = 36

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Which function has a vertex at the origin?

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Answer:

B) $f(x)=x(x-4)$

Step-by-step explanation:

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For a function to have its vertex at origin the function must pass through point (0,0) which means $f(0)=0$ .

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