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Solnce55 [7]
3 years ago
7

Solve sin2x + 2sinx = 0 for 0 ≤ x < 2π. ...?

Mathematics
1 answer:
IgorC [24]3 years ago
3 0
Sin 2 x + 2 sin x = 0
2 sin x cos x + 2 sin x = 0 / : 2
sin x cos x + sin x = 0
sin x ( cos x + 1 ) = 0
sin x = 0,  cos x + 1 = 0,  cos x = - 1;
Answer:
x = 0,  or x = π
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The graph of y=sin(x-3π/2) is the graph of the y=sin(x) shifted in which direction​
pychu [463]

Answer:

\frac{3\pi}{2}  units to the right

Step-by-step explanation:

If we have a parent function y = Sin(x), the function

  • y = Sin(x-b) would be the parent shifted b units right
  • y = Sin (x+b) would be the parent shifted b units left

The function given is y=Sin(x-\frac{3\pi}{2})

So from the rules, we can clearly say that it is parent function shifted RIGHT by  \frac{3\pi}{2} units.

2nd answer choice is correct.

5 0
3 years ago
On Monday, Avi walked from his home to the school track and walked 4 laps around the track for a total of 3.5 miles. On Saturday
anyanavicka [17]

Answer:

3.5 = x + 4*y

4 = 2x + 2*y

Step-by-step explanation:

The total distance ran by Avi is the sum of the distance from his house to the track, and the total distance ran in the tracks (that is, the distance of one lap times the number of laps Avi ran).

If we call 'd' the total distance and 'k' the number of laps, we have the equation:

d = x + k*y

So with the data given, we can have the following system:

3.5 = x + 4*y

4 = 2x + 2*y

In the second equation, we have 2x because Avi ran from his home to the track, and in the end ran back home, so Avi ran the distance x two times.

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3 years ago
Help me with my algebra final exam please.​
kvasek [131]

Answer:

its b

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Find the perimeter of the figure to the nearest hundredth.
Kryger [21]

Hello!

Your answer should be 26.85.

We can use the formula of pi d or 2 pi r for the circumference.

You would get 5 pi.

But since its not a full circle you would divide it in half and get 2.5 pi.

2.5 pi is equal to 7.85.

Now we can use the equation 7.85 + 7 + 7 + 5

That would equal our answer... 26.85!

Hope this helps!

3 0
2 years ago
Geometry sem 1 7.1.2 Exam: Semester 1 Exam​
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Answer:

A

Step-by-step explanation:

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2 years ago
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