Answer:
x = 15 in
you can use the Pythagorean Theorem because you know the legs of the triangle and need to find the hypotenuse
the left leg of the triangle is 9 because 9² = 81
the bottom leg of the triangle is 12 because 48/4 = 12
9² + 12² = x²
81 + 144 = x²
225 = x²
√225 = x
Step-by-step explanation:
-6
Plug in (-1) for y: -3(-1) - 9
Simplify: Negative x Negative = Positive
-3(-1) = 3 so... 3-9
3 - 9 = -6
-3y - 9 is equivalent to -6
Check the picture below.
