Answer:
X = 3 or higher
Step-by-step explanation:
hope it helps, let me know if it doesn't :)
Answer:
A) 32
Step-by-step explanation:
f(x) = 2x² - 24x
If f(x) = 1280, then 2x² - 24x = 1280
Subtract 1280 from both side ⇒ 2x² - 24x - 1280 = 0
Divide both sides by 2 ⇒ x² - 12x - 640 = 0
Factorise ⇒ (x - 32)(x + 20) = 0
Solve ⇒ x = 32 or -20
Therefore, x = 32 (as x ≥ 0)
Answer:
volume = 16956 meters
Step-by-step explanation:
volume = area * height
= pi * r^2 * height
= 3.14 * (30m/2)^2 * 27
volume = 16956 meters