Drag and drop the expressions into the boxes to correctly complete the proof of the polynomial identity. (x^2+y^2)^2 +2x^2y^2−y^4 =x^2(x^2+4y^2)

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)

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?