1) 15x^3 + 19x^2 + 6x
a) (3x^2 +2)(5x+3)
b) x(3x+2)(5x+3)
c) x^2(3x+2)(5x+3)
d) x(5x+2)(3x+3)
e) prime
i chose e) prime.
2) 2x^2 - 14x - 6x + 42
a) 2(x+7)(x+3)
b) (x+7)(2x-6)
c) 2(x-7)(x-3)
d) (x-7)(x-3)
e) prime
i know that this is 2x^2 - 20 + 42 when you combine the 14x and 6x so i chose answer e) prime but i am not sure for this one.

answer: b.48 for

step-by-step explanation:

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x