A rock is thrown straight upward from the top of a 40-ft building. Its height in feet after t seconds is given by the polynomial − 16 t 2 + 12 t + 40 . a. Calculate the height of the rock after 1 sec. ( t = 1 ) b. Write − 16 t 2 + 12 t + 40 in factored form. Then evaluate the factored form of the polynomial for t = 1 . Is the result the same as from part (a)?
A rock is thrown straight upward from the top of a 40-ft building. Its height in feet after t seconds is given by the polynomial − 16 t 2 + 12 t + 40 . a. Calculate the height of the rock after 1 sec. ( t = 1 ) b. Write − 16 t 2 + 12 t + 40 in factored form. Then evaluate the factored form of the polynomial for t = 1 . Is the result the same as from part (a)?
Solution Summary: The author calculates the height of rock after 1 second if the polynomial is -16t2+12t+40.
A rock is thrown straight upward from the top of a 40-ft building. Its height in feet after t seconds is given by the polynomial
−
16
t
2
+
12
t
+
40
.
a. Calculate the height of the rock after 1 sec.
(
t
=
1
)
b. Write
−
16
t
2
+
12
t
+
40
in factored form. Then evaluate the factored form of the polynomial for
t
=
1
. Is the result the same as from part (a)?
I want to learn this topic l dont know anything about it
Solve the linear system of equations attached using Gaussian elimination (not Gauss-Jordan) and back subsitution.
Remember that:
A matrix is in row echelon form if
Any row that consists only of zeros is at the bottom of the matrix.
The first non-zero entry in each other row is 1. This entry is called aleading 1.
The leading 1 of each row, after the first row, lies to the right of the leading 1 of the previous row.
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