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3 years ago

A grading machine can grade 96 multiple choice tests in 2 minutes.

Mathematics

1 answer:

Ainat [17]3 years ago

8 0

Answer:192 I think

Step-by-step explanation:

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san4es73 [151]

Answer:

Step-by-step explanation:

It’s d

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2 years ago

Help! Match each linear equation with its graph

Bond [772]

Answer:

y = -1/4 x+4 is blue

y = 1/2 x+4 is green

y = 3x is red

y = -1/2x is purple

y = 3 is black

6 0

2 years ago

Please help meeeeee thanksss

Alex

Answer:

Step-by-step explanation:

it's 3 hmmm it tells you rise over run.. just about where they are asking for the answer.. what do you not get about the question?

3 0

3 years ago

Which of the following is a radius of circle B?<br> BN<br> MD<br> NH

azamat

The correct answer is BN.

3 0

3 years ago

Find the area A of the sector of a circle of radius 90 in formed by central angle 1/6 radian.

miv72 [106K]

Answer:

2121 $in^{2}$ Rounded to the nearest inch.

Step-by-step explanation:

A = $\pi r^{2}$ Is the formula for a circle, but we only have a portion of a circle so we will have to adjust the formula for a part of the circle.

A = $\frac{\frac{\pi }{6} }{2\pi }$ $\pi r^{2}$ The $\frac{\pi }{6}$ is the part of the circle and the whole circle is 2 $\pi$

$\frac{\frac{\pi }{6} }{2\pi }$ is the same as $\frac{\pi }{6}$ ÷ $\frac{2\pi }{1}$ Which is the same as $\frac{\pi }{6}$ x $\frac{1}{2\pi }$ Which is the same a $\frac{1}{12}$

A = $\frac{1}{12}$ $\pi$ $90^{2}$

A = $\frac{1}{12}$ (3.14)(90)(90) = 2119.5. When you use the $\pi$ on your calculator you get a slightly different number. This is due to rounding.

A = 2120.575041

5 0

1 year ago