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34kurt
3 years ago
7

Mai drove 260 miles using 12 gallons of gas. At this rate, how many gallons of gas would she need to drive 286 miles

Mathematics
1 answer:
Paraphin [41]3 years ago
7 0
Find the unit rate which is 260/12 which is 21 and 2/3 now divide 286 by 21 and 2/3.
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Anyone help please I need it
andreev551 [17]

Answer:

-10+i\sqrt{2}

Step-by-step explanation:

One is given the following expression:

\sqrt{4}-\sqrt{-98}-\sqrt{144}+\sqrt{-128}

In order to simplify and solve this problem, one must keep the following points in mind: the square root function (\sqrt{}) is a way of requesting one to find what number times itself equals the number underneath the radical sign. One must also remember the function of taking the square root of a negative number. Remember the following property: (\sqrt{-1}=i). Simplify the given equation. Factor each of the terms and rewrite the equation. Use the square root property to simplify the radicals and perform operations between them.

\sqrt{4}-\sqrt{-98}-\sqrt{144}+\sqrt{-128}

\sqrt{2*2}-\sqrt{-1*2*7*7}-\sqrt{12*12}+\sqrt{-1*2*8*8}

Take factors from out of under the radical:

\sqrt{2*2}-\sqrt{-1*2*7*7}-\sqrt{12*12}+\sqrt{-1*2*8*8}

2-7i\sqrt{2}-12+8i\sqrt{2}

Simplify,

-10+i\sqrt{2}

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8 0
2 years ago
5. A map is drawn to a scale of 3:750.
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Answer:

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we define x to be the actual distance, y to be the distance on map (y=15.4cm)

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19 + 3=22

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