Answer:
Step-by-step explanation:
Eliminate the y terms by adding the equations together:
-10y+9x = -9
10y+5x = -5
——————-
14x = -14
x = -1
y = 0
Answer:
10 and I dont know if you mean the equal sign in this "30-z"......so i'm not sure
Angles A and B are known as adjacent angles, which always sum to 180 degrees.
Therefore, angle A plus angle B = 180
We also know that angle B = 2 * angle A so we can say that
angle A + 2 * angle A = 180
3 * angle A = 180
Therefore, angle A = 60 degrees (and angle B = 120 degrees)
Source:
http://www.1728.org/quadpar.htm
Part A
5x 3y^3 2z
I know it is in standard form because there are no more like terms.
Part B: Polynomials are always closed under multiplication. Unlike with addition and subtraction, both the coefficients and exponents can change. The variables and coefficients will automatically fit in a polynomial. When there are exponents in a multiplication problem, they are added, so they will also fit in a polynomial.
