Answer: 6
Explanation:
x + 2x + 1 + 5x + 4 = 53
8x + 5 = 53
8x = 48
x = 6
Answer:
Two angles are called complementary if their measures add to 90 degrees, and called supplementary if their measures add to 180 degrees. ... For example, a 50-degree angle and a 40-degree angle are complementary; a 60-degree angle and a 120-degree angle are supplementary
X^2 + 2x -8
The factors of 8 are 2 and 4, and to get 2x we need 2 and 4 to either add up to or subtract to result in 2.
4 - 2 = 2. We also know this is right because 4 x -2 = -8. So the answer is:
(x + 4)(x - 2)
5 because 20 divided by 4 is 5, 40 divided by 8 is 5, 60 divided by 12 is 5 and 80 divided by 5 is 16.