Answer: 27
Step-by-step explanation:
so 6 times 9 is 54/ 2 is 27 so 27 is your answer
75 minus 68 equal 7 80 minus 71 equal 9. 7 plus 9 equal 16 boxes
30 x 10 = 300 i hope this helps
Answer:
You're less likely to make mistakes reading or writing very big and very small numbers if you use scientific notation. It also makes it much easier to tell at a glance which numbers are bigger or smaller without counting long strings of zeros.
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
