Answer:
, 
Step-by-step explanation:
The velocity function of the projectile is obtained by deriving the position function:

Now, the velocities after 3 and 15 seconds are, respectively:




Answer: x = -4
Step-by-step explanation:
1/2 * (x - (-6)) = 1
distribute
1/2x + 3 = 1
isolate the variable
1/2x = -2
x = - 4
Answer:
the answer is 180 dollars
Step-by-step explanation:
20 is 10% of 200 so just subtract that
56 is a decimal part of 70. 56 = 4/5 = .8