I believe equal to two because 5x+7 do 5X to both sides 7÷5 is 1.4
Answer:
-x^2 - 7x + 4
Step-by-step explanation:
2x(x - 1) - 3x^2 - (5x - 4)
= 2x^2 - 2x - 3x^2 - 5x + 4
Adding like terms, we get:-
-x^2 - 7x + 4 (answer).
Answer:
a 12.56 cm2
Step-by-step explanation:
area = πr² or I'd
step 1: substitute (plug in) for r which in here is 2
π(2)²
step 2: follow order of operations
(2)²= 4 *π= 12.56
P- parenthesis
E-exponent
MD- multiply and divide from left to right
AS- add and subtract from left to right
Answer:
Step-by-step explanation:
Let's assume that the length of a side of Allison's room as x
So, Lindsey's room = x + 3
If Lindsey's room needs 225 sq. feet of carpeting, then x + 3 = 
So, x + 3 = 15
Therefore, x = 15 - 3 = 12 ( So, Allison's room has a side of length 12)
Therefore, the carpeting needed = 12 × 12 = 12² = 144 sq. feet
There's your answer!
Answer:
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Step-by-step explanation:
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