Given a quadratic function, y = a x squared + b x + c, what happens to the graph when "a" is positive? a. the parabola opens down, the vertex is the maximum value c. the parabola opens up, the vertex is the maximum value b. the parabola opens down, the vertex is the minimum value d. the parabola opens up, the vertex is the minimum value Please select the best answer from the choices provided A B C D

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.

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?