3 years ago

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1 answer:

3 0

The student would earn %86. To calculate percentage you take the amount of questions correct, divide that by the amount of questions given, multiply by 100 and round to the nearest percent.

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Find the measure of the central angle that you would draw to represent 67% in a circle graph. Round your answer to the nearest d

klio [65]

Okay so there are 360 degrees in a circle graph
So 67%*360 degrees =241 degrees

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3 years ago

Simplify (4r - s) - (r + 2s) + (3r - s) A.) 6r - 3s B.) 8r C.) 3r - 2s D.) 6r - 4s

docker41 [41]

Answer: D

Step-by-step explanation:

4r-r+3r can be simplified to just 6r

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natulia [17]

Answer:

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Step-by-step explanation:

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serious [3.7K]

Answer:

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Step-by-step explanation:

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3 years ago

Simplify sin^2y/sec^2 y−1 to a single trigonometric function

liubo4ka [24]

Answer:

$\frac{ { \sin}^{2} y}{ { \sec}^{2}y - 1 } = { \cos }^{2} y$

Step-by-step explanation:

We know that ${ \tan }^{2} y = { \sec }^{2} y - 1$

Also , ${ \tan}^{2} y = \frac{ { \sin }^{2} y}{ { \cos }^{2}y }$

So ,

$\frac{ { \sin }^{2}y }{ { \sec }^{2}y - 1 } = \frac{ { \sin}^{2} y}{ { \tan }^{2} y} = \frac{ { \sin }^{2}y }{ \frac{ { \sin}^{2} y}{ { \cos}^{2}y } } = { \cos }^{2} y$

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