Which polynomial is twice the sum of 4x2 - x + 1 and –6x² + x - 4?
– 2x² – 3
C-4x2 - 6
-4x2 - 3
D
-2x²+x-5

Can someone me with the property questions for 12 13 and 14 plz

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7