Question
Maria had a square piece of paper. She cut 3 inches off the length and 4 inches off the width. Now the paper has a surface area of 30 in2. Which equation would you use to find the dimensions of the original piece of paper?
A. x2 - 7x + 12 = 0
B. x2 - 7x - 18 = 0
c. x2 - 3x - 4 = 30
D. x2 + 3x + 4 = 30
A. x2 - 7x + 12 = 0
B. x2 - 7x - 18 = 0
c. x2 - 3x - 4 = 30
D. x2 + 3x + 4 = 30
Answers
expand
(x-3)(x-4) = 30 and see which matches
(x-3)(x-4) = 30 and see which matches
evaluate r. 12Pr=1320
evaluate r. if12Pr=1320
Related Questions
The perimeter of a piece of paper is 38 inches its length is 11 inches
Part A : find the width...
Hamlet cut a piece of paper into a rhombus to use as part of a costume. The piece of paper is shown....
Hamlet cut a piece of paper into a rhombus to use as part of a costume. The piece of paper is shown....