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kirza4 [7]
3 years ago
12

3. Reason quantitatively. A figure has vertices P(-3, 1), Q(9, 1), R(3, —7), and S(-9, -7).

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
3 0
Don’t listen to them
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What is the value of 4r^2-8 when r=3?
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Answer:

28

Step-by-step explanation:

So this means to replace the r you see in 4r^2-8 with 3.

Let's do that:

4(3)^2-8

Now to simplify this just use pemdas or a calculator:

4(9)-8     since 3^2 means 3*3=9

36-8

28

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3 years ago
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This is confusing could you give more details? Thanks!

Step-by-step explanation:

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2 years ago
The perimeter of a rectangle is 45 inches. One side of the rectangle
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Solve the equation 18x - 9 = 5+ 12x
Hitman42 [59]

Answer:

x = 2\frac{1}{3}

Step-by-step explanation:

Try to get x alone on one side

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     + 9 + 9

Subtract 12x from both sides  

  18x = 14 + 12x    

   -12x          -12x

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8 0
3 years ago
A pizza shop sells pizza by the slice. They must make two different sizes of pizza - a 12-inch pizza which they cut into 60-degr
Vadim26 [7]

Answer:

14 inch pizza.

Step-by-step explanation:

A pizza is the shape of a circle which is 360 degrees.

For the 12 in pizza, it is being divided into 60 degree slices.

360/60= 6 slices.

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For the 14 inch pizza, it is being divided into 45 degree slices.

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For each slice 49\pi/8= 6.125\pi

Since 6.125\pi > 6\pi that  means that the 14 inch pizza slice is a better deal because you get more food for the same amount of money.

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3 years ago
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