Answer:
x = 1 and x = -7
Step-by-step explanation:
Given that,
...(1)
and
y = 7 -x ....(2)
Put the value of y from equation (2) in (1)
So,
x = 1 and x = -7
Hence, the solution of the given equations is x = 1 and x = -7
Answer:
3x² + 10x – 8
Step-by-step explanation:
Polynomials in standard form are written from highest exponent to lowest exponent.
Answer:
n = 45°
Step-by-step explanation:
The sum of the exterior angles of an octagon is equal to 360°. Since there are 8 exterior angles, divide 360 by 8.
Answer:
I think that the answer is C