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zloy xaker [14]
3 years ago
10

11. John puts a fence around his rectangular backyard. The width of his backyard is 10 feet. He

Mathematics
1 answer:
Lady_Fox [76]3 years ago
4 0

Length = 20 ft

If he uses 60 ft of fencing to line his rectangular backyard, then the perimeter is 60 ft.

Perimeter formula is ((Width × 2) + (Length × 2))

10 × 2 = 20

20 × 2 = 40

40 + 20 = 60

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Given that ABCD is a rhombus, what is the value of x?
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Answer:

A. 19.5

Step-by-step explanation:

Diagonals of a rhombus intersect at right angles. Therefore the angle opposite to AD = 90°.

Thus:

90° + x + 3x + 12 = 180° (sum of ∆)

Add like terms

102 + 4x = 180

Subtract 102 from each side

4x = 180 - 102

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4 years ago
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3 years ago
Solve the system of equations. y=6x+4 9x+y=-1
Ludmilka [50]

The solution to the system of equation is (-1/3, 2)

<h3>System of equation</h3>

Given the system of equation below;

y = 6x+4

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Substitute equation 1 into 2 to have:

9x + 6x + 4 = -1

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Substitute x = -1/3 into equation 1 to have:

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Hence the solution to the system of equation is (-1/3, 2)

Learn more on system of equation here: brainly.com/question/14323743

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2 years ago
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