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Reptile [31]
3 years ago
9

The slopes of vertical lines and horizontal lines are opposite reciprocals

Mathematics
2 answers:
Nitella [24]3 years ago
5 0
True! The slopes are opposite reciprocals (aka perpendicular lines)
Scrat [10]3 years ago
5 0
This is true slopes are vertical and horizontal lines are opposite reciprocals.
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Tatami mats are used as a floor covering in japan. One possible layout uses four identical rectangular mats and one square mat,
Maksim231197 [3]

a) Given

Total area = 81 feet squared.

 Let the area of the square mat = x feet.

From question, area of the rectangular mat is twice that of square mat.

 So, the area of the rectangular mat = 2 x feet.

Now,

Total area = 81 feet squared

Then,

      4(2 x) + x = 81\\ \\ 9 x = 81\\ \\  x = \frac{81}{9}\\ \\ x = 9\\

Hence  the area of the one rectangular mat = 2*9 = 18 feet squared

b) Let the width of the rectangular mat = y feet.

  Then length of the mat = 2 y feet.

   Area of the rectangle = 2 y* y = 2 y^{2}

   and area of rectangle = 18 feet squared.

   So,

 2 y^{2} = 18\\ y^{2} = 9\\ y= \pm3\\

Width can not be negative.

Hence, the width of the rectangular mat = 3 feet

and  length of the rectangular mat = 3*2 = 6 feet

8 0
3 years ago
What is the inverse of the function y=4x+5
docker41 [41]

Answer:

the answer for this question is (y-5)/4=x

3 0
3 years ago
Number sense which subtraction  sentences show you how to find 15- 7
Mars2501 [29]
You can use addition to solve this problem. 7+_= 15
6 0
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HELP WITH ONE MORE!!!!!!!!
Alexxx [7]

Answer:

f(x + 3) = (4x + 13)/(x - 3)

Step-by-step explanation:

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then in f(x + 3)...js replace x with (x + 3)...

f(x + 3) = (4(x + 3) + 1)/(x + 3 - 6)

;f(x + 3) = (4x + 13)/(x - 3)

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25. You have to do 65x65-(60x60) and the square root it
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