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vichka [17]
3 years ago
15

Independent or dependent {-3x+y=4 {X-1/3y=1

Mathematics
1 answer:
Lemur [1.5K]3 years ago
5 0
Dependent since det =0
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Step-by-step explanation:

Money saved for each shirt:

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4 years ago
What is the area of a sector with a central angle of 8 π/11 radians and a radius of 7.2 ft? use 3.14 for π and round your final
coldgirl [10]

Answer:

59.19 ft^2

Step-by-step explanation:

step 1

Find the area of the circle

The area of the circle is equal to

A=\pi r^{2}

we have

r=7.2\ ft

\pi =3.14

substitute

A=(3.14)(7.2)^{2}

A=162.78\ ft^2

step 2

we know that

The area of a circle subtends a central angle of 2π radians

so

using proportion

Find out the area of a sector with a central angle of 8 π/11 radians

\frac{162.78}{2\pi }\frac{ft^2}{rad} =\frac{x}{(8\pi/11)}\frac{ft^2}{rad} \\\\x=162.78(8/11)/2\\\\x=59.19\ ft^2

7 0
4 years ago
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ale4655 [162]
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8 0
3 years ago
Solve the system using elimination. y – x = 13 7y + x = 11
Eva8 [605]

Answer:

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Step-by-step explanation:

see the picture

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LenaWriter [7]

Answer:

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h=5 w=12

5:12

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3 years ago
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