Simplify the polynomial, then evaluate for x = 1 and y = – 2. 2x+y + 3x y2 – 3xy + 4x2 y + y2 – 5x y2

6x²y – 2xy2 – 3xy + y2; – 2

6x2 y – xy2 – 3xy; – 10

6x2y - 2xy2 – 3xy + y2; – 10

6x²y – xy2 – 3xy; – 14

Need help simplifying the polynomial

Acylinder and its dimensions are shown. which equation can be used to find v, the volume of the cylinder in cubic centimeters?

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

If square root x = -7, then x= -49 true or false