Answer:
5:7
Step-by-step explanation:
150:210
50:70
5:7
(Ratio has been simplified)
Answer:
x = - 2
Step-by-step explanation:
(f + g)(x) = f(x) + g(x)
f(x) + g(x) = x² - 2x + 6x + 4 = x² + 4x + 4
Equating to zero, that is
x² + 4x + 4 = 0 ← left side is a perfect square
(x + 2)² = 0, thus
x + 2 = 0 ⇒ x = - 2
Since the slop of a line is positive, the graph of the line would begin to move upwards, rather than downwards. A graph line only moves downwards when the slope of the line is negative.
The answer to this question is 0.5%
