Answer:
Step-by-step explanation:
1 cm=10 km
8 cm=10×8=80 km
X2, or 2X or X times 2, or X•2.
Answer:
coefficient of x: 2
coefficient of y: 3
coefficient of z: -7
Step-by-step explanation:
To solve this problem, first we need to sum the polynomials A and B, then we need to check the coefficients of x, y and z.
The sum of the polynomials is:
A + B = 5z + 4x^2 - 6y + 2 + 2x + 9y - 12z - 2
A + B = 4x^2 + 2x + 3y - 7z
So, the coefficients are:
coefficient of x^2: 4
coefficient of x: 2
coefficient of y: 3
coefficient of z: -7
Two out of thirty nine hope this helped
D might be the answer I am pretty sure it is D if not then sorry
