Strictly speaking, x^2 + 2x + 4 doesn't have solutions; if you want solutions, you must equate <span>x^2 + 2x + 4 to zero:
</span>x^2 + 2x + 4= 0. "Completing the square" seems to be the easiest way to go here:
rewrite x^2 + 2x + 4 as x^2 + 2x + 1^2 - 1^2 = -4, or
(x+1)^2 = -3
or x+1 =i*(plus or minus sqrt(3))
or x = -1 plus or minus i*sqrt(3)
This problem, like any other quadratic equation, has two roots. Note that the fourth possible answer constitutes one part of the two part solution found above.
Answer:
72
Step-by-step explanation:
0 < x < 1
Multiply the inequality by 100
0 < 100x < 100
0 < 72 < 100
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ANSWER:
D. - 1 / 2
This is as 104 ÷ - 52 = - 1 / 2
As well as this, - 52 ÷ 26 = - 1 / 2
And this ratio applies for the other numbers in the sequence as well.
Therefore, the answer must be - 1 / 2.
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Answer:
16 inches
Step-by-step explanation:
A cube has 6 sides and to find the surface area you would multiply one side by 6, or add the six sides together. So instead, to find the length of one side, you divide the surface area, 96, by 6 to get 16.
Hope this helps you :)
