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Alik [6]
3 years ago
7

Sin(13pi/2) in periodic function

Mathematics
1 answer:
Nataliya [291]3 years ago
5 0
Answer: 1
13pi/2 can be simplified onto 6 pi/2, so it goes around the unit circle 6 times and left with pi/2. the coordinates of pi/2 is (0,1). the trigonometric function sin is y/r. since r is always 1 on the unit circle, the answer is the y value, in this case it is 1.
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Plzz help me im going to most more like this because im not understanding it
lisov135 [29]
Hi there!

In order to solve, you can use substitution. This means that you use one equation and solve for one variable, then use that one equation and plug it into the other equation. Here's how we'd do it:

WORK:
x = 12 - y (since x is already solved for, we'll use that to plug into the other given equation.
2(12 - y) + 3y = 29 (using substitution)
24 - 2y + 3y = 29
24 + y = 29
y = 5
Plug the value of y back into the first equation
x = 12 - 5
x = 7

ANSWER:
A - x = 7, y = 5

It seems as though you're having some trouble with these questions, PLEASE MESSAGE ME!! I'd be more than happy to help you work through as many problems as you need until you get the hang of it (plus, it doesn't cost you any points!)

Hope this helps!! :)
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5 0
3 years ago
Graph the function y = 1 /3 x − 2.
Virty [35]

Answer:

start at the point (0,-2) and go up one and to the right three, keep going until you run out of room. then, draw a straight line through all the points :)

Step-by-step explanation:

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4 0
3 years ago
A circle has an area of 256 square inches. If the radius of
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Answer:

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