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ivanzaharov [21]
3 years ago
12

(?,5) is on the line 4x-7y=1. Find the other half of the coordinate.

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
8 0
The coordinate is an ordered pair (x,y). We have a number, 5, for y, which we can substitute (plug-in) for y in the equation of the line and solve for x.

4x-7y=1\\4x-7(5)=1\\4x=36\\x=9

(9,5)
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5 0
2 years ago
7.9 times 10 to the 8th power plus 1.68 times ten to the sixth power in scientific notation
nexus9112 [7]
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5 0
3 years ago
Someone please help me ✨
DedPeter [7]

Okay, so keeping mind that the equation for area is A = L x W, look at the measurements you already have. 5.5 x 10^5 is the length, and 4.2 x 10^4 is the width. Switch them into full form and use a calculator to multiply the two for the area in meters.

550000 x 42000 = 23100000000, which in scientific form is 2.31 × 10^10. So that's answer one.

For the second, in kilometers, just take the full measurement you already have, 23100000000 m, transfer it into kilometers, 23100000 km, and then find its scientific notation, 2.31 × 10^7. That's answer two.

To answer the last question for which is more suitable, just consider what number you'd prefer to look at: a bigger number or a smaller one. Since the kilometer measurement number is smaller, its correct.

Summarily, the answers are 2.31 × 10^10, 2.31 × 10^7, and square kilometers, in that order.

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2 years ago
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VashaNatasha [74]

Answer:

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Step-by-step explanation:

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3 years ago
What is the simplified form of (1/x)-(2/x^2+x)
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The answer would be C)3-x/x(x-1)
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