Answer:
Step-by-step explanation:
d = 3/2
a₂₀ = a₁+19d
35/2 = a₁ + 19×3/2
a₁ = 35/2 - 19×3/2 = -11
a₁₅ = a₁+14d = -11 + 14×3/2 = 10
A linear pair is 2 angles that form 180° or a straight line. The sum of their measures is 180°
Answer:
a =b
b=d
Step-by-step explanation:
alt angle
corresponding angle
There isn't really a formula for higher numbers. you can use a calculator with the square root function
Set the equations equal to each other
Subtract x from both sides
Divide both sides by -4
x=-1/2
