Which trinomials are perfect square trinomials?

select each correct answer.

a^2+4a+16

a^2+15a+75

a^2+14a+49

a^2+26a+169

which expressions are differences of squares?

select each correct answer.

a^2−36

x^2+25

w^2−121

n^2−50

Which letters from the table represent like terms? a and b b and c a and d b and d

The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)

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?