Answer & Explanation:A projectile is fired
upward from the ground with an initial velocity of 300 feet per second.
Neglecting air resistance, the height of the projectile at any time t can be
described by the polynomial function P(t) = 16t² + 300t
a. Find the height of
the projectile when t = 1 second.
b. Find the height of the projectile when t = 5 seconds.
c. How long will it
be until the object hits the ground?2. A board has length
(3x?
+ 6x² 18) meters and width of 2x + 1 meters. The board is cut into three pieces of the
same length.
a. Find the length of each piece.
b. Find the area of
each piece.
c. Find the area of the board before it is cut.
d. How is the area of each piece of the board related to the
area of the board before it is cut?3. A cubic equation
has zeros at -2, 1, and 3.
a. Write an equation for a polynomial function that meets
the given conditions.
b. Draw the graph of a polynomial function that
meets the
given conditions.
4. Alice was having a conversation with her friend Trina,
who had a discovery to share:
Pick any two integers. Look at the sum of their squares, the difference
of their squares, and twice the product of the two integers you chose. Those
three numbers are the sides of a right triangle.
a. Write an equation that models this conjecture using the
variables x and y.
b. Investigate this conjecture for at least three pairs of
integers. Does her trick appear to work in all cases, or only in some cases?
Explain.
c. Use Trinas trick to find an example of a right triangle
in which all of the sides have integer length, all three sides are longer than
100 units, and the three side lengths do not have common factors.
If Trinas conjecture
is true, use the equation found in part a to prove the conjecture. If it is not
true, modify it so it is a true statement, and prove the new statement.
unit_5_math_project.docx