3 years ago

Which transformations could have occurred to map

1 answer:

never [62]3 years ago

4 0

Answer:

A: a rotation and a reflection

Step-by-step explanation:

Hopefully this helps!

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Oxana [17]

The particular identity you want to use is

$\cos^2x=\dfrac{1+\cos(2x)}2$

Then

$3\cos^4x=3(\cos^2x)^2=3\left(\dfrac{1+\cos(2x)}2\right)^2=\dfrac34(1+\cos(2x))^2$

Expand the binomial to get

$3\cos^4x=\dfrac34\left(1+2\cos(2x)+\cos^2(2x)\right)$

Use the identity again to write

$\cos^2(2x)=\dfrac{1+\cos(4x)}2$

and so

$3\cos^4x=\dfrac34\left(1+2\cos(2x)+\dfrac{1+\cos(4x)}2\right)$

$3\cos^4x=\dfrac38\left(3+4\cos(2x)+\cos(4x)\right)$

7 0

3 years ago

andriy [413]

290 x 5 - 51 + 9 = 1,400

7 0

3 years ago

lesantik [10]

Answer:

Step-by-step explanation:

401.92 divided by 16 = 25.12

25.12 divided by 3.14 is 8

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3 years ago

belka [17]

The answer is y = 6. My work is shown in the photo.

4 0

3 years ago

Troyanec [42]

2/5

because if you turn 3 1/5 into an improper fraction that 16/5 divided by 8/1 equals 16/40 which when simplified equals 2/5

3 0

4 years ago