Answer:
Step-by-step explanation:
30, the angle is worth 180 and 180-40=140. 140-20=120. 4*30=120
Answer:
One real root, with multiplicity 7.
Step-by-step explanation:
The given expresion is

This is a seventh degree polynomial.
According to the fundamental theorem of Algebra, the expression has a potential 7 roots both real and complex.
This expression has one real root, with multiplicity , 7.
Answer:
18%
Step-by-step explanation:
9 divided by 50
Answer: Um It’s C?
Step-by-step explanation:
Hello!
Let's begin by multiplying all 3 terms by 4, to remove the fraction:
2(r-3) - 8(4) = 50(4)
Then 2r - 6 - 32 = 200. Consolidating the constants on the right side, we get:
2r = 162. Solving for r, we divide both sides by 2, obtaining r = 81 (answer)