Answer:
<h2>
<em><u>87</u></em></h2>
Step-by-step explanation:
<em>3×(5)^2 - 4×2 + 2×2×5</em>
<em>3×(5)^2 - 4×2 + 2×2×53×25 - 8 + 20</em>
<em>3×(5)^2 - 4×2 + 2×2×53×25 - 8 + 2075 + 20 - 8 </em>
<em>3×(5)^2 - 4×2 + 2×2×53×25 - 8 + 2075 + 20 - 8 95-8</em>
<em>3×(5)^2 - 4×2 + 2×2×53×25 - 8 + 2075 + 20 - 8 95-887</em>
Answer:
D. x2 + x - 20.
Step-by-step explanation:
(x – 4)(x + 5).
= x(x + 5) -4(x + 5).
= x2 + 5x – 4x – 20.
= x2 + x - 20.
Answer:
83
Step-by-step explanation:
Angle 7 & angle 8 are supplementary angles, meaning they add up to 180º.
Angle 8 & angle 12 are corresponding angles, so they are equal.
If we solve for the measure of angle 8, it will be the same answer as angle 12.
Therefore, angle 7 & angle 12 add up to 180º.
80 + (x+17) = 180
Solve:
(80-80) + (x+17) = 180-80
X+17 = 100
X + (17-17) = 100-17
X = 83
The second one would prove they are parallel. This is because it uses angles touching both of the parallel lines and uses correct Angle Properties