Answer:
Step-by-step explanation:
(g-f)(x) = 9x³ - 4x² + 10x - 55 - [ 4x³ +3x² - 5x + 20]
To remove the parenthesis, take - inside, multiply f(x) by -1
= 9x³ - 4x² + 10x - 55 - 4x³ - 3x² + 5x - 20
Now, bring like terms together,
= 9x³ - 4x³ - 4x² - 3x² + 10x + 5x - 55 - 20
= 5x³ - 7x² + 15x - 75
300miles/20sec=?miles/1min
900miles/60sec=?miles/1min
900miles/1min=?miles/min
?=900 miles
Answer:
multiply 2 by b to get d
Step-by-step explanation:
Statement 1 is false because the domain of f is all real numbers since the function is quadratic.
Statement 2 is true<span>.
Statement 3 is true because when we graph f, it is a parabola opening upwards with vertex (3, -1). Since it is opening upward, then the value of x from -</span>∞ to 3 is decreasing while increasing from 3 to ∞.
<span>
Statement 4 is false because we just stated above that f is decreasing from -</span>∞ to 3. Hence, f is also decreasing from -1 to 3. Hence, f is not increasing from -1 to <span>∞.
</span><span>Statement 5 is false because the axis of symmetry is x = 3.
Statement 6 is true.</span>