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Korvikt [17]
3 years ago
7

2a+1, 102, Which expression is equivalent to 10a-5+7-2_?

Mathematics
1 answer:
Mrac [35]3 years ago
4 0

Answer:

Your answer would be D. sorry In my explanation if i switched from a to x.

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A certain right triangle has area 30 in. squared . one leg of the triangle measures 1 in. less than the hypotenuse. let x repres
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A) The length of the longer leg is x-1

b) Based on the area, the other leg is 2*30/(x -1). Based on the Pythagorean theorem, the other leg is √(x^2 -(x -1)^2).

c) Equating the two expressions for the shorter leg, we have
.. 60/(x -1) = √(2x -1)
.. 3600/(x -1)^2 = (2x -1)
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.. 2x^3 -5x^2 +4x -3601 = 0

d) There is one positive real root, at x=13. A graphical solution works well.

The three sides of the triangle are 5 in, 12 in, 13 in.


_____
5-12-13 is a well-known Pythagorean triple. It is the next smallest one after 3-4-5.

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3 years ago
Two angles are supplementary. If the measure of the first angle is 88° what is the measure of the second angle?
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Step-by-step explanation:

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4 years ago
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Answer:

shoes 324×2 =648

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Given the system of equations, what is the solution?<br><br> 2x + y = 7<br> 2x - 3y = -1
eduard

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3 years ago
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Approximately how many seconds would it take for the Mississippi River( 16,790 cubic meters per second) to fill the volume of th
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1 * 10^11

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