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Mamont248 [21]
3 years ago
11

Please help asap 20 pts

Mathematics
1 answer:
arsen [322]3 years ago
3 0

I would love to help you answer this, but I think you missed showing the picture of the graph. Unless you are supposed to graph this yourself, I think there is more to the question. Sorry I couldn't help you!

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Find the exact value of sec(-4π/3
melisa1 [442]
<span>Find the exact value of sec(-4π/3).  Note that one full rotation, clockwise, would be -2pi.  We have to determine the Quadrant in which this angle -4pi/3 lies.  Think of this as 4(-pi/3), or 4(-60 degrees).  Starting at the positive x-axis and rotating clockwise, we reach -60, -120, -180 and -240 degrees.  This is in Q III.  The ray representing -240 has adj side = -1 and opp side = to sqrt(3).

Using the Pyth. Theorem to find the length of the hypo, we get hyp = 2.

Thus, the secant of this angle in QIII is hyp / adj, or 2 / sqrt(3)    (answer).  This could also be written as (2/3)sqrt(3).


</span>
3 0
3 years ago
The cost of 11 dvds and 7 cds is 172.50 and the cost of 10 dvds and 7 cds is 155.80. How much does a cd and dvd cost?
AleksandrR [38]

Answer:

The question has a mistake

Step-by-step explanation:

11d+7c= 172.5

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By subtraction;

1d+ 0c = 16.7

1d = 16.7

11×16.7+7c=172.5

7c = 172.5-11*16.7

You will get a negative answer yet the cost cannot be negative.

5 0
3 years ago
If the point x,sqrt(3)/2 is on the unit circle. What is x?
sattari [20]
Check the picture below.

if you check your Unit Circle, it'd be there.

6 0
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Ashley has 4 pairs of low-top sneakers, 7 pairs of high-top sneakers, 3 pairs of sandals, and 1 pair of boots. What is the ratio
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Answer: It took 65 hours for her to drive

Step-by-step explanation:

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