The perimeter of the rectangle is 80 cm. The area of the rectangle is acm2 . (i) show that x 2 40x + a = 0.​

The second equation is solved for x x xx, so we can substitute the expression − y + 3 -y+3 −y +3minus, y, plus, 3 in for x x xx in the firstSince both equations are solved for y, we can substitute one into the other. ... Substitute −2x + 2 for y in the second equation. ... Since 0 = 0 is a true statement, the system is consistent.how did the right to privacy displayed itself in our community or on any media platformswhy people use social media platforms to abuse and violate Humans right violation

The freezing point depression ∆T = KF·m where KF is the molal freezing point depression constant and m is the molality of the solute. Rearrangement gives: mol solute = (m) x (kg solvent) where kg of solvent is the mass of the solvent (lauric acid) in the mixture. This gives the moles of the solute.

the answer is 28

step-by-step explanation:

50=33x+22

step-by-step explanation: