$273.60
18 x 40= 720
720 x 0.72 = 518.4
518.4 x 4 = 2,073.6
2,073.6 - 1,800 = $273.60
Answer:
10) Supplementary; 11) Supplementary; 12) Complementary
Step-by-step explanation:
Sum of supplementary angles equals 180° while sum of complementary angles equals 90°.
For question 10
x + 70° = 180° (sum of straight lines)
x = 180° - 70° = 110°
Hence, 70° and 110° are supplementary angles.
For question 11,
x + 85° = 180° (sum of straight lines)
x = 180° - 85° = 95°
Hence, 85° and 95° are supplementary angles.
For question 12,
x + 32° = 90° (sum of right angles)
x = 90° - 32° = 58°
Hence, 32° and 58° are complementary angles.
Answer:
-8
Step-by-step explanation:
<span>2y^2 + 12y- 54
=2(</span>y^2 + 6y- 27)<span>
=2 (y - 3)(y+9)</span>
Answer: -4, -2
Step-by-step explanation: The formula for a 180 degree counterclockwise rotation is x,y -> -x, -y. You change the sign for both numbers, so they both become negative.
Hope this helped!
