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2 years ago

15

Jack's annual salary increased by 10 percent and Arnie's decreased by 5 percent. If their annual salaries were equal in 2011 Arn

ie's what percent greater than Jack's in 2011?

1 answer:

Ivenika [448]2 years ago

7 0

15 percent I'm pretty sure correct me if wrong plz

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Which of the following is a valid comparison between the possible minimum and maximum values of the function y = -x2 + 4x - 8 an

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The maximum value of the equation is 1 less than the maximum value of the graph

Step-by-step explanation:

We have the equation $y=-x^2+4x-8$ .

We can know that this graph will have a maximum value as this is a negative parabola.

In order to find the maximum value, we can use the equation $x=\frac{-b}{2a}$

In our given equation:

a=-1

b=4

c=-8

Now we can plug in these values to the equation

$x=\frac{-4}{-2} \\\\x=2$

Now we can plug the x value where the maximum occurs to find the max value of the equation

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This means that the maximum of this equation is -4.

The maximum of the graph is shown to be -3

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2 years ago