20*2=40
40*50=2000
2000/60=33.33
about 33 hours by lifting by hand
Answer:
-12,-9,8,10,12,16
Step-by-step explanation:
M(x) = 5x + 4 n(x) = 6x - 9
Part 1 (m + n)(x) = 5x + 4 + 6x - 9
= 11x - 5
Part 2 (m * n)(x) = (5x + 4)(6x - 9) = 30x^2 - 21x - 36
Part 3 m[n(x)] = 5(6x - 9) + 4
= 30x - 45 + 4
= 30x - 41
Palarell lines has equal slop. so the slope of a line parallel to y = -x + 7 is equal to the slope of y = -x + 7 = -1.