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xxMikexx [17]
3 years ago
10

Which expression represents the phrase, "one third the sum of 12 and a number"?

Mathematics
2 answers:
SCORPION-xisa [38]3 years ago
8 0
1/3(12 + x) <==

the sum means add....so 1/3 of the sum (12 + x).....1/3(12 + x)
maxonik [38]3 years ago
5 0
If anything id say the last one  13(12+x)
 :)
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Answer:

Step-by-step explanation:

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          = x* (-5x² + 2x + 7) + 1*(-5x² + 2x + 7)

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        = -5x³ + 2x² + 7x - 5x² + 2x + 7

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4) (f*g)(x) = (x² + 2x + 4)(x - 2)

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2) Speed=\dfrac{distance}{time}\\\\\\= \dfrac{d(h)}{t(h)}\\\\= \dfrac{2\sqrt{h}}{3\sqrt{4h}}=\dfrac{2*\sqrt{h}}{3*2\sqrt{h}}\\\\\\=\dfrac{1}{3}

1)d(h) = \sqrt{16h^{4}}=\sqrt{2*2*2*2*h*h*h*h}=2*2*h*h=4h^{2}\\\\\\t(h) = 3h^{4}-3h^{3}-5h^{2}= h^{2}(3h^{2}-3h - 5))\\\\Speed=\dfrac{4h^{2}}{h^{2}(3h^{2}-3h-5)}\\\\=\dfrac{4}{3h^{2}-3h-5}

7 0
3 years ago
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