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4 years ago

8

Which is the best to buy?

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g100num [7]4 years ago

5 0

The answer is D........

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Following data, what would be the value of y?<br> A.3<br> B.5<br> C.11<br> D.9

crimeas [40]

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B.5 in think not so sure

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3 years ago

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140,000 = 1.4 x 105<br> True<br> O False

vichka [17]

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this is false. hope this helps

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3 years ago

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Which is the graph of the linear function that is represented by the equation Y=1/2x-2?

Dennis_Churaev [7]

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the slope is 1/2 and the y intercept it 4

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3 years ago

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What is the following solution to |x+3|=12

vladimir1956 [14]

$|x|=a\iff x=a\ or\ x=-a\\==============================\\|x+3|=12\iff x+3=12\ or\ x+3=-12\ \ \ \ |subtract\ 3\ from\ both\ sides\\\\\boxed{x=9\ or\ x=-15}$

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3 years ago

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X+2y-z=5<br> -X-y+2z=-13<br> 2x+y-2z=14

faltersainse [42]

Answer:

$x+2y-z=5 ...(1)\\ -x-y+2z=-13...(2) \\ 2x+y-2z=14...(3) \\ \\ add \: (2) + (3) \\\boxed{x= 1} \\ 2 \times (1) + (2) \\ x + 3y = - 3 \\ 1 + 3y = - 3 \\ 3y = - 4 \\ \boxed{y = - \frac{4}{3} }\\ solve \: for \: z \\ x + 2y - z = 5 \\ 1-\frac{4}{3}(2)-z=5\\3-8-3z=15\\3z=-20\\\boxed{z = - \frac{20}{3} }$

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3 years ago