jeblockhead3oy2swt jeblockhead3oy2swt

15-11-2017
Mathematics

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The sum of a number and 20 is no more than the sum of the square of the number and 9.

Which of the following inequalities can be used to determine this unknown number?

a.x + 20 ≤ x2 + 9
b.x + 20 < x2 + 92
c.x + 20 < (x + 9)2
d.x + 20 ≤ (x + 9)2

Relax

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violetmarie violetmarie

15-11-2017

x+20 less than or equal to x squared plus nine. it looks like thats answer A. but if the two is squared you should write it as x^2.

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