3 years ago

?????????????????????

Mathematics

1 answer:

anyanavicka [17]3 years ago

8 0

Answer:

It would be 1/8

Step-by-step explanation:

32 divided by 4 is 8

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If PQ = 7 and PR = 32, find QR.* use diagram a.) 39 b.) 25 c.) 28 d.) 30

lukranit [14]

Answer:

Step-by-step explanation:

I think answer is B. Because 32 mjnus 7 is 25.

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4 years ago

Rewrite in simplest terms: (4x + 6) – (3x + 1) Answer: Submit Answer

Wittaler [7]

4x+6-3x+1
Combine like terms:
x=7

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3 years ago

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The volume of the triangular prism is 54 cubic units.

lys-0071 [83]

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3 years ago

A batter strikes a baseball. the equation y = -0.005^2 +0.7x + 3.5 models its path, where x is the horizontal distance, in feet,

hram777 [196]

Answer:

(D)144.8 feet

Step-by-step explanation:

Given the equation which models the path of the baseball

$y = -0.005x^2 +0.7x + 3.5$

where x is the horizontal distance, in feet, the ball travels and y is the height, in feet, of the ball.

To determine how far from the batter the ball will land, we determine the distance x at which the height, y=0.

$y = -0.005x^2 +0.7x + 3.5=0$

$-0.005x^2 +0.7x + 3.5=0$

We use the quadratic formula to solve.

In the quadratic equation above, a=-0.005, b=0.7, c=3.5

$x=\dfrac{-b\pm\sqrt{b^2-4ac} }{2a} \\=\dfrac{-0.7\pm\sqrt{0.7^2-4(-0.005*3.5)} }{2*-0.005} \\=\dfrac{-0.7\pm\sqrt{0.49+0.07} }{-0.01}\\=\dfrac{-0.7\pm\sqrt{0.56} }{-0.01}\\x=\dfrac{-0.7+\sqrt{0.56} }{-0.01} \: or\: x=\dfrac{-0.7-\sqrt{0.56} }{-0.01}\\x=-4.83 \: or\: x=144.83$

Since x cannot be negative, x=144.8 feet to the nearest tenth of a foot.

The correct option is D.

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3 years ago

Find x -x = 7x - 56

solmaris [256]

Answer:

the answer is 7

Step-by-step explanation:

Add the same term to both sides of the equation

-x=7x-56

−x=7x−56

−x−7x=7x−56−7x

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3 years ago

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