Answer:
B) x = 3 or x = -5/2
Step-by-step explanation:
Solve for x over the real numbers:
2 x^2 - x = 15
Subtract 15 from both sides:
2 x^2 - x - 15 = 0
x = (1 ± sqrt((-1)^2 - 4×2 (-15)))/(2×2) = (1 ± sqrt(1 + 120))/4 = (1 ± sqrt(121))/4:
x = (1 + sqrt(121))/4 or x = (1 - sqrt(121))/4
sqrt(121) = sqrt(11^2) = 11:
x = (1 + 11)/4 or x = (1 - 11)/4
(1 + 11)/4 = 12/4 = 3:
x = 3 or x = (1 - 11)/4
(1 - 11)/4 = -10/4 = -5/2:
Answer: x = 3 or x = -5/2
The simplified rational expression for that is 2
Answer:
<em>The maximum area of the second board must be 
square inches.</em>
Step-by-step explanation:
The total area of two different size boards cannot exceed 
square inches.
The area of one board is 
square inches.
Suppose, the area of the second board is 
square inches.
That means......
So, the maximum area of the second board must be square inches.
Answer:
its C. i hope this helps good luck and don't forget to thank and the brainly
Step-by-step explanation:
