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tangare [24]
3 years ago
12

Which of the following is the graph of y = cos(2x)?

Mathematics
2 answers:
irinina [24]3 years ago
5 0

Answer:

Select the one which meets the following characteristics.

Step-by-step explanation:

y = cos(2x)

Characteristics:

Mean line at y = 0

Amplitude = 1

Period = 360/2 = 180° or pi radians

i.e one complete cos cycle is 0 to 180, next is 180 to 360 and so on

Range : from -1 to 1

Colt1911 [192]3 years ago
4 0

Answer:

answer is a on edge2020

Step-by-step explanation:

taking the test, graphed it

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MariettaO [177]

Answer:c

Step-by-step explanation:

C. 5, 13,12, 67,23, right angle

8 0
3 years ago
Quotient z on 7 Decreases on 1<br>Decreases 7 ? <br><br>ناتج قسمة Z على 7 يقل عن 1 بمقدار 7 ؟<br>​
Crank

Answer:

pls I don't understand can u pls expatriate

7 0
3 years ago
Cross multiply to get answer<br> x + 5/10 = 2x-3/15
Andreyy89

Once cross multiplied you end up with this:

15x+75=20x−30

Next subtract 20x from both sides.

15x+75−20x=20x−30−20x

−5x+75=−30 -----------> Answer

Now subtract 75 from both sides

−5x+75−75=−30−75

−5x=−105

Now divide by -5 on both sides.

-5/-5x = -105/-5

<h3 /><h3>x = 21 --------------> ANSWER</h3>
3 0
3 years ago
Attachment mathswatch!!!!!!!!!!!!!
Vinil7 [7]

Answer:

<h2><em><u>y = -x - 1</u></em></h2>

Step-by-step explanation:

The line is going in a negative direction. This means that the line is negative. The slope is -1. The y- intercept is the coordinate (0,-1). SO the equation is y = -x - 1.

5 0
3 years ago
I don’t understand this question. Can anyone help? I need answers ASAP. Thanks for all the help
zavuch27 [327]

There's some unknown (but derivable) system of equations being modeled by the two lines in the given graph. (But we don't care what equations make up these lines.)

There's no solution to this particular system because the two lines are parallel.

How do we know they're parallel? Parallel lines have the same slope, and we can easily calculate the slope of these lines.

The line on the left passes through the points (-1, 0) and (0, -2), so it has slope

(-2 - 0)/(0 - (-1)) = -2/1 = -2

The line on the right passes through (0, 2) and (1, 0), so its slope is

(0 - 2)/(1 - 0) = -2/1 = -2

The slopes are equal, so the lines are parallel.

Why does this mean there is no solution? Graphically, a solution to the system is represented by an intersection of the lines. Parallel lines never intersect, so there is no solution.

7 0
3 years ago
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