<span>The solution is:
x(t) = 3*t^2 - 0.130*t^3
v(t) = x'(t) = 6*t - 0.360*t^2
v(5) = 6*5 - 0.360*5^2 = 21 m/s
v(10) = 6*10 - 0.360*10^2 = 24 m/s
set v(t) = 0 and solve for t
0 = 6*t - 0.360t^2
0 = t*(6-0.360*t)
6-0.360*t = 0
t = 6/.360 = 16.7 s</span>
7.05÷ 3= 2.35 ( u divide the 3 tacos by price. to check answer multiply ur divided answer 2.35 x 3= 7.05)
Vertical angles are equivalent so
7x-4=87
and 4 to both sides to remove the negative numbers, the new equation is
7x=91
Then divide both sides by 7 and you get the answer
1x=13
Makes sense?
That would be 29.7
I hope this helps
(x+7) (x-7)
Because: the difference of two squares.