Hi hope I helped, ok so first 6×7=42 and its less than 53 so ur answer is 42
Answer:
the first one
Step-by-step explanation:
the two lines intersect exactly at 5, -3
This equation would be equal to y = -5x + 30
Step-by-step explanation:
T = time in seconds
H = distance
Tground = time to return to ground
Tmax = time at maximum height
H = -16T^2 + 672T...eqn 1
projectile returns to ground at H =0,
subs for H in eqn 1...
0 = -16T^2 + 672T
solving for T we get...
16T^2 = 672T
=> Tground = 42secs
Tmax = 0.5 Tground = 21secs
