Select the correct answer from each drop-down menu.
consider the following polynomials equations.
a = 3: 23 – 1)
b = -3r3 + 4x2 –25 + 1
perform each operation and determine if the result is a polynomial.
is the result of a + b a polynomial?
is the result of a-b a polynomial?
is the result of a. b a polynomial?

Which expression is not a polynomial?

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?