Which expressions are equivalent to -2.3 - 8.7 + (-5). Select all that apply? A. -2.3-(-8.7)+(-5)
B. 2.3-8.7-5
C. -2.3- 8.7 - (-5)
D. 2.3-8.7-(-5)
E.-2.3+ (-8.7) + (-5)
F. -2.3- (-8.7)+ 5

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

Read the situations in the table below. then drag a graph and equation to represent each situation. indicate whether each of the relationships is proportional or non-proportional. edit : i got the right answer its attached

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)