3 years ago

How do I determine a percent

1 answer:

3 0

Oh wait i got it give me a sec To calculate percentage decrease: First: work out the difference (decrease) between the two numbers you are comparing. Then: divide the decrease by the original number and multiply the answer by 100. If your answer is a negative number then this is a percentage increase.

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Does anyone know how to do this? I’m lost

Nataly [62]

Answer: B

Step-by-step explanation:

To find the inverse function, you switch x with y and y with x. Then, you solve for y.

$y=(x-1)^{2} -4$ [switch x with y, and y with x]

$x=(y-1)^2-4$ [add both sides by 4]

$x+4=(y-1)^2$ [square root both sides]

$\sqrt{x+4} =y-1$ [add both sides by 1]

$\sqrt{x+4} +1=y$

$f^-^1(x)=1+\sqrt{x+4}$

Now that we know the inverse function, we can actually tell that the answer is B. We know this because of the restriction that f(x) is x≤1. This makes it positive, and B the answer.

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3 years ago

Use properties to find the sum or product 93+(68+7)

Studentka2010 [4]

The answer would be:

93
+75
-------
168

8 0

3 years ago

Determine the place value of the digit 5 in the following whole number 1,576

nikklg [1K]

It is in the hundreds place. The number would be said as one thousand five hundred seventy six

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3 years ago