C' is the image after C(-4,-2) after a reflection across the y-axis. What are the coordinates of C'?

(4,-2)

Step-by-step explanation:

r y-axis: (x,y) ⇒ (-x,y)

(-4,-2) ⇒ (4,-2)

The coordinates of C is = (-4,2)

Step-by-step explanation:

y-axis

(x, y) →→→→→→→→→→→ (-x, y)

(-4,-2) →→→→→→→→→→→ (-4,2)

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step-by-step explanation:

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the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.