Which of the following are polynomial functions? Check all that apply.
A. F(x) = 3x-^3 - 19
B. F(x) = 2x^2 + 5x - 3
C. F(x) = -x^3 + 5x2 + 7x - 1
D. F(x) = -x^3 + sq -x
E. F(x) = 3/5x^4 - 18x^3 + x^2 - 10x + 3.5

Ihave a 69 and an 82. the 69 is worth 40% of my grade and the 82 is worth 15%. can someone tell me my current average grade.

In the given figure ar(adf) =ar(cda) and ar(cdf) = ar(cdf). show that abdc and cdfe are trapeziums.

Lv beethoven software supplies customized software to a managed healthcare system. lv beethoven software's costs for the software is $1,723,000. lv beethoven software sells the software to the healthcare system for $3,816,981.10. overhead expenses are estimated at 47% of the selling price. what is lv beethoven software's net profit to the nearest dollar?