Answer:
x=27
Step-by-step explanation:
Triangle angle =180 degrees
180＝2x+5+x＋17＋3x-4
180=6x+18
(180-18)/6=x
x=27
Its 249 because the difference 726-447 is 249
Yes, this is a perfect square because it can be square rooted to get 7x
Answer:
the slope that is perpendicular to line y=-7x-12 is 1/7
1/7 is the perpendicular slope
Step-by-step explanation:
Answer:
-2
Step-by-step explanation:
x^2 + x=2
Subtract 2 from each side
x^2 + x-2=2-2
x^2 + x-2=0
Factor
What 2 numbers multiply to -2 and add to 1
2*-1 = -2
2+-1 =1
(x-1)(x+2)=0
Using the zero product property
x-1 = 0 x+2 = 0
x=1 x = -2
Product of the roots
1*-2 = -2
