Answer:

Step-by-step explanation:
The formula you wrote has the fraction the other way around. You can find that the range of a projectile is in reality approximated by the equation
, where we will use ft for distances.
From the given equation we have then
, which means
since the arcsin is the inverse function of the sin.
Since we have x = 170 ft and v = 85 ft/s, we can substitute these values from the equation written, and we will have
, and from now on we have just to use a calculator, obtaining 
Answer:
150
im pretty sure thats right
Answer:

Step-by-step explanation:

Subtract 3 from both sides:


Subtract 10x from both sides:


Divide both sides by -3:


Answer: -7
Step-by-step explanation:
