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shepuryov [24]
2 years ago
9

A rectangle has a width of 15 and a length of 18. Find its area.

Mathematics
1 answer:
wolverine [178]2 years ago
3 0
Answer:
270
Step-by-step explanation:
Area = length × width
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lutik1710 [3]

You know 1 is not a root because the sum of the coeffcients of the equation is 14, not zero.

It is fairly easy to try 3 by synthetic division (see attachment), which tells you that 3 is a root and the remaining quadratic factor is x²-3x-5. The quadratic formula tells you the roots of that factor are

... x = (-b±√(b²-4ac))/(2a) = (3±√29)/2

The appropriate choices are

... C. (3-√29)/2

... D. (3+√29)/2

... F. 3

_____

The quadratic formula tells you the solution to

... ax²+bx+c=0

is x = (-b±√(b²-4ac))/(2a)

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8 0
3 years ago
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kotykmax [81]
15. -(-7y + 12) = 7y - 12

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18. -6b > 42           4b > -4
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19. 6 more then the product of 8 and n
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6 0
3 years ago
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The answer is b, or 84ft squared. To find the area of a rectangle, you multiple the length by the width. So you multiply 10.5 by 8, which equals 84.
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3 years ago
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Leokris [45]

Answer:

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Step-by-step explanation:

what you need to do is divide 3.4 by .004. and since they are both in the same unit, theres no need to convert.

7 0
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6(-3)-1-51+131=
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