Answer:
x=-5
Step-by-step explanation:
Answer: 6
Step-by-step explanation:
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
Answer:
At every 360°
EG. -360, 0, 360...
Step-by-step explanation:
SEE ATTACHMENT
Simplify the equation by dividing by 2.
Convert the equation so both terms have the same denominator - cos(x).
Multiply both sides by cos(x).
Looking at the graphs, where the top one is y = sin(x) and the bottom is y = cos(x), you can see that at every 360°, 1 + sin(x) = cos(x)
EG
1 + sin(-360) = cos(-360)
1 + 0 = 1