The sum of two numbers is 76 and their difference is 52. Find the two numbers. Please explain
1 answer:
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In order to determine the area of the lot of land in squared yards, proceed as follow:
Convert the dimensions of the rectangle to yards, by using the given conversion factor:
Next, consider that the area of the lot is the area of a rectangle. Replace the previous values of the length and the width of the rectangle:
Hence, the area of the lot of land is 656.25 sq yd
Answer:
a) The vertex of the graph is , b)
, c) The equation of the parabola is
.
Step-by-step explanation:
a) The tennis ball experiments a free fall, that is, an uniform accelerated motion due to gravity and in which effects from Earth's rotation and air viscocity are negligible. The height of the ball in time is represented by a second order polynomial. Hence, the vertex of the parabola is the initial point highlighted in graph.
The vertex of the graph is .
b) If we know that ,
and
, then the value of
is:
c) The equation of the parabola is .
