x^2+7x-30=0 Rewrite the expression.
x^2+10x-3x-30=0 Factor the expressions.
x(x+10)-3 (x+10)=0 Factor the expression.
(x+10)(x-3)=0 Separate into possible cases.
x+10=0
Solve.
x-3=0
x1= -10
x2= 3
The answer would be
Day 1 = 4 inches
Day 2 = 14 inches
Day 3 = 8 inches
Answer:
1/6 or 4/24 either one is correct
Step-by-step explanation:
Not if you know your mathmatics
Answer:
The velocity of the car after the collision is -5.36 m/s
Step-by-step explanation:
An elastic collision is an encounter between two bodies in which the total kinetic energy of the two bodies remains the same.
let the following:
m₁ = mass of the car = 1400 kg
m₂ = mass of the truck = 3200 kg
u₁ = velocity of the car before collision = 13.7 m/s
u₂ = velocity of the truck before collision = 0 m/s
v₁ = velocity of the car after collision
v₂ = velocity of the truck after collision
v₁ = [ u₁ * (m₁ - m₂) + u₂ * 2m₂ ]/ (m₁ + m₂)
= [ 13.7 * (1400 - 3200) + 0 * 2 * 3200 ]/ (1400 + 3200)
= - 5.36 m/s
So, <u>the velocity of the car after the collision is -5.36 m/s</u>
