'which of the following is equivalent to the expression (x+3)(x-7)+(x+8)(x+3)? ' i use the distributive property and added etc. and my outcome was 2x^2+7x+3. i got the answer as (2x+1)(x+3) but only because it was an answer choice and was equivalent to 2x^2+7x+3. where did the 1 and 3 come from in (2x+1)(x+

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

Aladder that is 20ft long is leaning against the side of a building. if the angle formed between the ladder and the ground is 75 degrees how far is the bottom of the from the base of the building?