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enyata [817]
3 years ago
9

The area of a rectangular tennis court is 140 square meters. It’s length is 6 meters less than twice it’s width. Find the dimens

ions of the tennis court
Mathematics
1 answer:
lina2011 [118]3 years ago
4 0
Let the width be : x
length : (2x - 6)

(2x - 6) (x) = 2x square - 6x

2x square - 6x = 140
2x square - 6x - 140 = 0

if you use the cross method or calculator you’ll get :

( x - 10 ) ( x + 7) = 0

x = 10 or x = -7 ( reject because negative )
so we use x = 10.

width = 10
length = 2(10) - 6 = 14

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x - 100%

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3 years ago
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Indira finds that on a typical day, 4 out of every 5 students at her school eat a
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Answer:

396

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2 years ago
Work out the number of boys and girls in each class below.
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Answer:

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2 years ago
Un móvil azul de 573 g se encuentra en movimiento sobre un carril metálico. Si sobre el móvil, el resorte ejerce una fuerza haci
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Answer:

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Step-by-step explanation:

A blue 573 g mobile is moving on a metal rail. If on the mobile, the spring exerts a force to the right of modulus 0.85 N and in the indicated position the kinetic energy of the mobile-spring system is 0.47 J and its elastic potential energy is 0.242 J. Determine the mechanical energy of the system mobile-spring in the position shown as indicated in the figure.

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4 0
3 years ago
Can u guys PLEASE explain the difference between 2 x 10 to the power of 4 and 2 to the power of 4
Alexxx [7]

Answer:

see explanation

Step-by-step explanation:

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7 0
3 years ago
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