V = u + at
2.8 = u + a*8.5
2.8 = u + 8.5a
s = ut + 0.5at^2
40 = u*8.5 + 0.5*a*8.5^2
40 = 8.5u + 36.125a
(2.8 = u + 8.5a) * 8.5
23.8 = 8.5u + 72.25a
Subtract those equations
16.2 = - 36.125a
a = 0.448
2.8 = u + (8.5*-0.448)
2.8 = u - 3.8
u = 6.6 m/s
Answer:
a. 9
b. The slope represents the cost for every new DVD
c. 6
d. The song represents the base price, or the price that it would cost for 0 DVDs
e. y = 9x + 6
here's a graph of what the line would look like
Answer:
g uljhi to I am Vishesh films are the charges and
X(x + 3) + x(x - 3) = 2
x^2 + 3x +x^2 - 3x = 2
2x^2 = 2
x^2 = 1
x = +1 and x = -1
answer
x = +1 and x = -1
