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9966 [12]
3 years ago
6

A square and a rectangle have the same perimeter. The rectangle is 13 cm long and 7 cm wide.

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

Answer:

the length of a side of a square is 5 cm long.

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On a number line, the surface of a river is marked at −220 feet and the top of a building is marked at +19 feet, where 0 represe
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A

Step-by-step explanation:

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James has decided to start saving for a cruise over the summer. His money is currently in the local bank modeled by the function
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Answer:

s ( x ) = 102,  a ( x ) = 8 ( x + 2 )

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What is the cross-sectional area of a cement pipe 2 in. thick with an inner diameter of 5 ft? Use pie 3.14.
Paul [167]

Answer:

1.60 ft^{2}

Step-by-step explanation:

Assuming that this is a cylindrical pipe, the area can be determined by applying the formula for calculating the area of a circle.

i.e Area = \pir^{2}

So that,

for the inner part of the pipe,

r = \frac{diameter}{2}

 = \frac{5}{2}

 = 2.5 feet

Area of the inner part of the pipe = \pir^{2}

                                 = 3.14 x (2.5)^{2}

                                 = 19.625

Are of the inner part of the pipe is 19.63 ft^{2}.

Total diameter of the pipe = 5 + 0.2

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r = \frac{5.2}{2}

 = 2.6 feet

Area of the pipe = \pir^{2}

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                            = 21.2264

Area of the pipe is 21.23 ft^{2}.

Thus the cross sectional area = Area of the pipe - Area of the inner part of the pipe

                                           = 21.2264 - 19.625

                                           = 1.6014

The cross sectional area of the cement pipe is 1.60 ft^{2}.

6 0
2 years ago
What is the perpendicular adjacent sides in the triangle
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"Adjacent" means next to each other. "Perpendicular" means at an angle of 90 degrees. 
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