3 years ago

Someone help me?Please

Mathematics

1 answer:

Aloiza [94]3 years ago

5 0

Answer:

Step-by-step explanation:

7 5/6 is 7.833333333333333333333

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What is the focus of the parabola? y=−14x2−2x−2

nataly862011 [7]

First, we need to transform the equation into its standard form (x - h)²=4p(y - k).
Using completing the square method:

y = -14x² - 2x - 2
y = -14(x² + 2x/14) - 2
y = -14(x² + 2x/14 + (2/28)²) -2 + (2/28)²
y = -14(x + 1/14)² - 391/196
-1/14(y + 391/196) = (x + 1/14)²

This is a vertical parabola and its focus (h, k + p) is (-1/14, -391/196 + 1/56) = (-1/14, -775/392).

Or (-0.071,-1.977).

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3 years ago

Which graph represents the solution to the inequality?1/3(9x+27)>x+33

Alik [6]

Answer:

Pretty sure it is C

Step-by-step explanation:

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dangina [55]

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4 years ago

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emmasim [6.3K]

1. B) 3/2 = 1.5
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3 years ago

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A mountain bike has a diameter of 26 inches. To the nearest foot how far does the tire travel when it makes 32 revolutions?

Tcecarenko [31]

Hello!

You have to find the circumference

You use the equation

$2 \pi r$

r is radius which is half the diameter

This gives us 81.68

Multiply this by 32

81.68 * 32 = 2613.76

This is 217.8133333 feet

The answer is 217.8133 feet

Hope this helps!

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3 years ago