Answer:
10x-15+7x-21
Step-by-step explanation:
Take parenthesis out
5x-5+5x+10=7x-21
10x-15+7x-21
For example, the same angles could give you a triangle with sides 7-12-13, 35-60-65, or any other multiple. Find the third angle by subtracting from 180°. Then use the Law of Sines (28)★ twice to find the second and third sides. Use the Law of Cosines (31)★ to find the third side.Feb 19, 2018
Set up a ratio:
24 / 36 = x /12
cross multiply:
24 * 12 = 36 * x
288 = 36x
divide both sides by 36
x = 288 / 36
x = 8
answer is A) 8
2x - 1 + 3x + 6 = 90°
5x + 5 = 90
5x = 90 - 5
5x = 85
x = 85/5
x = 17°
