Answer:
x = 80°
Step-by-step explanation:
The full angle of the straight line is 180°. We already have 100°, so we need to find out what is left over for x
180 - 100 = 80
So the angle of x is 80°
A and D
should be the answers.
Answer: The required fraction = 
Step-by-step explanation:
Let the required fraction = 
Given: Initial height = 192 inches
Height of ball after second bounce = 
Height of ball after third bounce = 
After the third bounce it is 3 inches off the ground.
So,

Hence, The required fraction = 
= a₁ + d(n - 1) ; where "a₁" is the first term and "d" is the difference
a₂₄₀ = a₁ + d(240 - 1)
a₂₄₀ = a₁ + 239d
Answer:
I could be wrong but I don't think they're congruent.
Step-by-step explanation: