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White raven [17]
3 years ago
12

Gabby wants to tile a room with and area of 320 Square feet. The width of the room is 4/5 it's length. What are the length and w

idth of the room
Mathematics
2 answers:
Shalnov [3]3 years ago
5 0
I hope this helps you



width=4/5.length



width×length =320


4/5.length ×length =320


length ^2=400


length =20


width =16
Elodia [21]3 years ago
4 0


lenght - a
width - b
Area= a*b
320=ab
b=4/5a
320= 4a^{2}/5
400= a^{2}
a= \sqrt{400}
a=20
b=16
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2 years ago
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Ad libitum [116K]

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D. 13 1/2


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The population of a certain species of oak tree in a national forest declines each year by one-fourth. So, after each year, only
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7 0
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notsponge [240]

Answer:

(1.5,-2.6)

Step-by-step explanation:

Given the polar coordinates (-3,60°).

Let our Cartesian coordinates be (x,y)

#We know that when converting the rectangular coordinates (x,y) to polar (r,θ), then:

r=\sqrt{x^2+y^2}\\\\\therefore r^2=x^2+y^2\\\\\theta=tan^{-1}(y/x)\\\therefore tan \theta=y/x

#Using the illustration above, we can express our polar coordinates as:

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#Solve simultaneously to solve for x and y:

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6 0
3 years ago
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