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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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The vertex of this parabola is at (3,5) when the y-value is 6 the x value -1 what is the coefficient of the squared term in the
ale4655 [162]

Answer:

1/16

Step-by-step explanation:

Here,

Vertex =(3,5)

x= -1, y=6

Simply,eqn of parabola is given by ax^2+bx+c=y

So, coefficient of squared term (x^2) is 'a'

Therefore, we've to find the value of a

Moving on to solution:

a-b+c=6 ___(i) (by putting the given values of x and y in eqn of parabola )

We know that,

Vetex=(-b/2a, ( 4ac-b^2)/4a)

(3,5) = (-b/2a , (4ac-b^2)/4a)

Equating corresponding sides,we get

3= -b/2a

b=-6a___(ii)

Again,

5=(4ac-b^2)/4a

5=(4ac/4a) - (b^2/4a)

5= c- (36a^2/4a) (by putting value of b from eqn ii )

5= c-9a___(iii)

Now,moving back to the first eqn

a+6a+5+9a=6

16a=1

therefore,a=1/16

Hence ,the required value of coefficient of squared term is 1/16.

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3 years ago
What is the value of x?
sineoko [7]
90 = 49 + x
90° - 49° = x
41 = x

I decrease it with 90 because the corner is facing. I hope the answer is right...
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3 years ago
Which statements are true regarding the area of circles &amp; sectors? Check all that apply.
Fynjy0 [20]

Answer:

4pi r

Step-by-step explanation:

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8y + 10 − 4 − 5y = <br><br> please answer
GrogVix [38]

Answer:

<em>Well, The best answer will be is </em><em>y = 2. Good Luck!</em>

3 0
4 years ago
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Simplify the following equation: 32^3/5
anyanavicka [17]
32^3/5 = (2^5)^3/5 = 2^(5*3/5) = 2^3 = 8 
3 0
3 years ago
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