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3 years ago

Points A, B, and C are plotted on the unit circle.

Mathematics

1 answer:

sertanlavr [38]3 years ago

4 0

Answer:

E. x-coordinate of point C

Step-by-step explanation:

Consider the diagram of the unit circle which has been drawn and attached.

Using a calculator in radians, $cos (\pi)=-1$

On the unit circle, out of points A, B and C, the point -1 is at point C.

Point C is located at (-1,0).

Therefore, $cos (\pi)$ is the x-coordinate of point C.

The correct option is E.

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The price p and the quantity x sold of a small flat-screen television set obeys the demand equation below.

stiks02 [169]

<span><span>The price p and quantity x sold of a small flat screen television set obeys the demand equation below.
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a. How much should be charged for the television set if there are 60 television sets in stock? Round to nearest cent
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3 years ago

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Elodia [21]

Answer:

Step-by-step explanation:

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Each circular sector has an angle of 30°, and each arc is equal to 30°.

Now, notice that tha angle formed by the two blue cables is an external angle formed by two secants, that means we can use the following relation

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3 years ago

Find two numbers such that one number is 3 less than twice as big as the other number and the two numbers sum to 21.

Hitman42 [59]

Answer:

The two numbers are:

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Step-by-step explanation:

a = 2b - 3 Eq. 1

a + b = 21 Eq. 2

Replacing Eq. 1 in Eq. 2:

(2b-3) + b = 21

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from Eq. 1

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a = 13

Check:

From Eq. 2:

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2 years ago