2 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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How is the graph of y = 8x2 − 1 different from the graph of y = 8x2?

dezoksy [38]

Answer:

The first image = y =8x^2 -1

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Step-by-step explanation:

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3 years ago

Using the equation y=kx and the table below, find the constant of proportionality (k).

elena-s [515]

Answer:

k = 9/4

Step-by-step explanation:

To find k, use the equation

y = kx

Pick a point

72 = k *32

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2 years ago

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6 9/10 x 20/21 Simplify your answer completely and change to a mixed number.

Sidana [21]

Answer:

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Step-by-step explanation:

Hello,

I am going to start with to change to a improper fraction:

1. I will convert 6 and 9/10 into a improper fraction:

$69/10$

2. Now that I have converted the mixed fraction into a improper I can multiply the numerator and the denominator.

$69 * 20 / 21 * 10 = 1380/210$

3. Now I can simplify this value and convert it into a mixed fraction

$46/7$

After further simplifying I can convert this into an mixed number

$6\frac{4}{7}$

5 0

2 years ago

What is the length of the base of a right triangle with an area of 20 square meters and a height of 4 meters? 5 m 10 m 80 m 160

o-na [289]

You find the area of a triangle by using 1/2*b*h where b is the base and h is the height. since we already know the area is 20 and the height is for you plus them in so the problem would be 20= 1/2 (b) (4) then you multiply what you know together to get 20= 2b and then isolate the b by dividing both sides by two so the base should be 10 m

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2 years ago

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Simplify -6x(9-12) ??

olga55 [171]

18x. Is your answer. :)

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2 years ago

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