Answer:

Step-by-step explanation:
The vertical displacement function is
, where
is measured in meters and
in seconds. Ball hits the ground when
. That is:

Whose roots can be found by using the General Formula for Second-Order Polynomials:

Solutions of this polynomial are:

Only the first root is physically consistent.
5x + 3y= 8.50
3x + 2y= 5.25
Lydia is the first equation. She bought 5 pounds of apples which is x and bought 3 pounds of bananas which is y. Basically, remember each banana and apple weighs a price per pound. We don't know the price so we just put an x. This is the same for the second equation
Answer:
<em>24 square yards</em>
Step-by-step explanation:
Find the diagram attached.
The area of the diagram = Area of rectangle + Area of triangle
Area of rectangle = 3 * 4
Area of rectangle = 12 square yards
Area of triangle = 1/2 * base * height
Area of triangle = 1/2 * 6 * 4
Area of triangle = 12 square yards
Area of the diagram = 12 + 12
Area of diagram = 24 square yards
<em>Hence 24 square yards of carpeting is needed</em>
160,000 - 40,000= 120,000/4 = 3 sets of new tires in the first year and 4 every consecutive year.