Answer:
B.
the complementary angles form a right angle with the shared ray
In order for the triangle to be isosceles, we have to set two lengths of the triangle equal to each other.
Let's take the lengths 5x-12 and x+20 and set them equal to each other.
5x - 12 = x + 20
Combine like terms by moving them over to their respective sides.
Subtract x from both sides of the equation.
4x - 12 = 20
Add 12 to both sides of the equation.
4x = 32
Divide both sides by 4.
x = 8
Check your answer by substituting.
5x - 12 = x + 20
5(8) - 12 = 8 + 20
40 - 12 = 28
28 = 28
Solution: x = 8
Answer:
4
Step-by-step explanation:
9x=10x-4
x=4
542(1+1/4)
542(4/4+1/4)
542(5/4)
677.5
When multiplying numbers with exponents, add the exponents.
So the answer is 2^-16
