Diagonally I believe is how you’d do it
Answer:
11. last option with x ≠ 1 is the choice
Step-by-step explanation:
x² + 5x +6 = (x + 2) (x + 3)
x² + x - 12 = (x - 3) (x + 4)
x² + x - 2 = (x - 1) (x + 2)
(x² + 5x +6) / (x + 4) * (x² + x - 12) / (x² + x - 2)
(x + 2) (x + 3) / (x + 4) * (x - 3) (x + 4) / (x - 1) (x + 2)
= (x + 3) ( x - 3) / (x - 1)
x - 1 ≠ 0 If the denominator of a fraction is zero, the expression is not a legal fraction because it's overall value will be undefined
I think only the last option that has x ≠ 1 is the answer
Hello!
Answer:
|2x - 5| = 4
Solve for the negative and positive expressions:
2x - 5 = 4
2x = 9
x = 9/2
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-(2x - 5) = 4
-2x + 5 = 4
-2x = -1
x = 1/2.
Therefore, the solutions are x = 1/2 and 9/2.
Answer:
2.833 BTUs per cubic foot were produced.
Step-by-step explanation:
BTU's produced by one person = 800
No. of students = 34
Therefore no. of BTU's produced by 34 person = 800 * 34 = 27,200 BTU
Dimension of class 25 feet by 32 feet by 12 feet
Volume of class = length * width * height = 25 * 12 * 32 = 9,600 cubic feet
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BTUs per cubic foot produced = Total BTU's produced by 34 person/ Volume of class
Substituting the value of Total BTU produced and volume of class
BTUs per cubic foot produced = 27,200 BTU/ 9,600 cubic feet
= 2.833 BTUs per cubic foot
2.833 BTUs per cubic foot were produced.
