Answer:
2x+39
Step-by-step explanation:
X^2+4x+4 and there is no remainder
Answer:
59 and 79
Step-by-step explanation:
59+79=138
59 is 20 less than 79 so it works
Time is 16.75 seconds when the arrow reaches 200 ft
Step-by-step explanation:
- Step 1: Find time at height of 200 ft
Height = 200 ft
v = 280 ft/s
Projectile formula, h = -16t² + vt
⇒ 200 = -16t² + 280t
⇒ 16t² - 280t + 200 = 0
⇒ 2t² - 35t + 25 = 0 (dividing by common factor 8)
Using quadratic formula to find t
t = (35 ±√35² - 4×2×25)/2×2
t = (35 ±√1225 - 200)4 = 35 ± 32.02/4
∴ t = 67/4 or 3/4
t = 16.75 seconds
I don't know if you need the average but i did 21 divided by 9 and got 2.333
