Algebra problems

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find the following and simplylify completey.

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12x+(-4)+42=17x+8

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if 7.6 plus 1.4 times a number quals the sum of the number 64.8 what is the number?

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prove that three collinear points can determine a plane.

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Noah knows that his friend Ryan uses 2 small chlorine tablets a week to maintain his 10,000 gallon pool

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Need help, please!!

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Which measure of central tendency is the middle number in the data when the numbers are arranged in order? A. mean B. mode C. range D...

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if sinA , CosA and tanA are In G.P then Cos3 A+ cos2 A is equal to ?

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ratios and proportions

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You have to use 3.14 for Pie.

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negative nine tents divided by (eleven thirds multiplied by three fifths)equals

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ratios and proportions

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I am asking for help on math. How do i solve this math word problem?

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Let X be given by its distribution function F(x), such that F(x) = 0 if x ≤ 0 F(x) = x^2/4 if 0<x≤2 F(x) =1 if x>2 a)Graph the distribution function F(x) b)Graph...

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A (-5, 1), B (-5, 3), C (-1, 3), and D (-1, 3)

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An 18 – Karat gold necklace weighs 24 grams: 18 grams of pure gold and six grams of metal alloy. The cost of the necklace is $1200. There is a matching bracelet, weighing 10 grams. a...

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ratios and proportions

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I have 1277 calls that are 2 minutes each, and I pay $191.55, what is my cost per minute?

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hint x/5 = 1/5x