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Sphinxa [80]
3 years ago
15

Find the slope for (2, 150) and (4,130)

Mathematics
1 answer:
iris [78.8K]3 years ago
4 0

Answer:

-10

Step-by-step explanation:

A slope's equation for 2 points on a coordinate plane is y² - y^1 ÷ x² - x^1

Note that the exponents aren't meaning powered, but just as a marking.

x1 is 2, x2 is 4, y1 is 150, y2 is 130

130-150 / 4-2     =     -20/2, so -10

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4 years ago
A rectangular yard has a width that is 10 feet longer than the width . If the the area of the yard is 600 squared feet , find th
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Answer:

length = 30 feet and width = 20 feet

Step-by-step explanation:

Let l is length and b is width of a rectangular yard. The area of a rectangle is given by :

A = lb ..(1)

A rectangular yard has a length that is 10 feet longer than the width.

length, l = 10+b ...(2)

ATQ,

Put the value of l in equation (1),

(10+b)b=600\\\\10b+b^2=600\\\\b^2+10b-600=0\\\\b^2+30b-20b-600=0\\\\b(b+30)-20(b+30)=0\\\\(b+30)(b-20)=0\\\\b=-30\ \text{feet}\ \text{and}\ b=20\ \text{feet}

Width can't be negative. The width is 20 feet.

Put the value of b is equation (2),

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Hence, the length and width are 30 feet and 20 feet.

8 0
3 years ago
Equivalent decimal for 67/100
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134/200 is a equivalent fraction
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The ratio of the perimeters of two similar triangles is 4:3. What are the areas of these triangles if the sum of their areas is
otez555 [7]

Answer:

the areas of these triangles are 83.2cm² and 46.8cm²

Step-by-step explanation:

1. If the triangles are similar and the ratio of the perimeter ois 4:3, then the areas are in the following ratio:

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2. The sum of their areas is 65 cm², then, you can calculate the area of the larger triangle as following:

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