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defon
3 years ago
7

A rectangle has a perimeter of 8x+6 and a length of 3x. what is the width

Mathematics
1 answer:
Murrr4er [49]3 years ago
7 0

l (length)=3x

P (perimeter)= 8x+6 = 2 x length + 2 x width

                        8x+6 = 2 (3x) + 2 x width

                        8x+6 = 6x + 2 x width

                         2 x width = 8x+6 - 6x

                         2 x width = 2x+6

                         width = 1/2(2x+6) = x + 3

Hope it helps

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Answer:

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Step-by-step explanation:

A right triangle can be drawn to model the geometry of the problem. The hypotenuse of the triangle is the length of the string, 100 ft. The side opposite the angle is the height of the kite above the ground, 85 ft.

The mnemonic SOH CAH TOA reminds you of the relationship between sides and angles.

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  sin(α) = (85 ft)/(100 ft) = 0.85

The angle whose sine is 0.85 is found using the arcsine (inverse sine) function:

  α = arcsin(0.85) ≈ 58.2°

The angle of elevation is about 58°.

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When using your calculator to find the values of inverse trig functions, make sure it is in <em>degrees</em> mode. Otherwise, you're likely to get the answer in radians (≈ 1.01599 radians).

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If 1200 cm2 of material is available to make a box with a square base and an open top, find the largest possible volume of the b
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Step-by-step explanation:

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h = (1200 - l^2)/4l .....2

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4 0
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<h3>How to simplify the shape.</h3>

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If you want to learn more about areas, you can read:

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