Using the given equation, set H to 8 meters and solve for t:
8 = 3 + 20t -5t^2
Subtract 8 from each side:
3 + 20t -5t^2 -8 = 0
Simplify:
20t - 5t^2-5 =0
Factor out -5:
-5(t^2-4t+1)=0
Divide both sides by -5:
t^2 - 4t +1 = 0
Using the quadratic formula solve for t:
t = 2 +/- √3
t = 3.73 or 0.27
Answer:it’s 10 raised to seven right
Step-by-step explanation:
Well to find the value of x you need to get x alone. so you -1 from 3 and do 2/27 and your answer is 0.074
1000 because it takes 5 1,000's to make 5,000
rationalise the denominator by multiplying both top and bottom by (8-5√3) then expand and simplify
