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Eddi Din [679]
3 years ago
13

If the area of a rectangle is 50m^2 what is the perimeter?

Mathematics
2 answers:
elixir [45]3 years ago
4 0

Answer:

Step-by-step explanation:

2l+2w= 50

l= 4w-8

2 (4W - 8) + 2W = 50.

2 (4W - 8) + 2W = 50

8W - 16 + 2W = 50

10W - 16 = 50

10W = 66

W = 6.6 meters

Solve for L

L = 4W - 8

L = 4 (6.6) -8

L = 26.4 - 8

L = 18.4

Dimensions are 6.6 and 18.4

I hope this is right

nika2105 [10]3 years ago
3 0

It's most likely 30 m

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pashok25 [27]

Answer:

x=12

Step-by-step explanation:

32/2x = x/9; because the triangles are similar

32 = 2x^2/9

288 = 2x^2

144 = x^2

x = 12 or x = -12, but the latter is nonsensical.

5 0
3 years ago
If tan (theta) =5/4 and cos (theta) < 0 . Find the other trig. functions.
andrew-mc [135]
Tan(theta) = 5/4
sin(theta)/cos (theta)=5/4
cos(theta)=4sin(theta)/5
sin²(theta)+cos²(theta)=1
sin²(theta)+16sin²(iheta)/25=1  /*25
25 sin²(theta)+16 sin²(theta)=25
sin²(theta)=25/41    /√
sin(theta)=\frac{-5 \sqrt{41} }{41}
cos(theta)=\frac{-4 \sqrt{41} }{41}
cot(theta)=\frac{4}{5}
csc(theta)=1/sin(theta)=\frac{- \sqrt{41} }{5}
sec(theta)=1/cos(theta)=\frac{- \sqrt{41} }{4}

5 0
3 years ago
If two opposite sides of a square are increased by 8 meters and the other sides are decreased by 5 meters, the area of the recta
Alchen [17]

Answer:

21

Step-by-step explanation:

8 * 2 = 16

5 * 2 = 10

68 - 16 = 52 - 10 = 42.

The perimeter of the square is 42.

42 / 4 = 10.5. 10.5 is the length of a side.

10.5 * 2 = 21.

5 0
3 years ago
The rectangle below has an area of x^2-6x-7 square meters and a width of x-7 meters
Illusion [34]

<em><u>Complete Question:</u></em>

The rectangle below has an area of x^2-6x-7 square meters and a width of x-7 meters. What expression represents the length of the rectangle?

<em><u>Answer:</u></em>

<h3>The expression represents the length of the rectangle is (x + 1) meter</h3>

<em><u>Solution:</u></em>

Given that,

\text{Area of rectangle} = x^2 - 6x - 7 \\\\Width = x - 7

<em><u>TO FIND: LENGTH = ?</u></em>

We know that,

Area\ of\ rectangle = length \times width \\\\Therefore\\\\x^2 - 6x - 7 = length \times x - 7\\\\length = \frac{x^2 - 6x - 7 }{x - 7 }\\\\length = \frac{(x-7)(x + 1)}{x - 7}\\\\\text{cancel out x-7 from numerator and denominator} \\\\length = x + 1

Thus expression represents the length of the rectangle is (x + 1) meter

8 0
3 years ago
Write all the three digit numbers that have a 3 in the tens place and a 5 in the ones place
Basile [38]

135, 235, 335, 435, 535, 635, 735, 835, 935.

8 0
3 years ago
Read 2 more answers
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