\begin{aligned} & 12x-5y = -20 & y=x+4 \end{aligned}

12x−5y=−20
y=x+4

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Aladder that is 20ft long is leaning against the side of a building. if the angle formed between the ladder and the ground is 75 degrees how far is the bottom of the from the base of the building?

Intro biblioteca sunt 462 de carti cu 198 mai putine enciclipedii si cu 47 mai multe dictionare decat enciclopedii cate enciclopedii sunt in biblioteca