Answer:
5x² + 9x + 1
Step-by-step explanation:
Given:
A = 3x² + 5x - 6
B = 2x² + 4x + 7
A + B:
3x² + 5x - 6 + 2x² + 4x + 7
(3x² + 2x²) + (5x + 4x) - 6 + 7
5x² + 9x + 1
Answer:
18
Step-by-step explanation:
3 × 3/5 = 9/5
9/5 = x/10
x = (9 × 10) ÷ 5
x = 18
The answer should be 5.5
because 11 x 0.5 = 5.5 so 5.5 / 11 = 5.5