What is (fg)(x)? f(x) = -2x
g(x) = 3x + 7

1. (fg)(x) = -6x^2 - 14x
2. (fg)(x) = 6x^2 + 7
3. (fg)(x) = x - 5
4. (fg)(x) = x + 7

step-by-step explanation:

a and d

c. 6tan80

step-by-step explanation:

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.