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Rufina [12.5K]
3 years ago
14

I need help on this question thanks!! :)

Mathematics
2 answers:
Strike441 [17]3 years ago
6 0
Perimeter = 3y + 7 cm
weeeeeb [17]3 years ago
3 0

Answer:

perimeter = 3y + 7 cm

Step-by-step explanation:

perimeter = y + y + y + 5 = 3y + 7 cm

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The shaded sector above covers 1/3 of the circle. If the radius of the circle above is 3 cm, what is the area of the sector in t
Mekhanik [1.2K]

Given:

The shaded sector above covers \dfrac{1}{3} of the circle.

Radius of the circle = 3 cm

To find:

The area of the sector in terms of π.

Solution:

The area of a circle is

A=\pi r^2

Substituting r=3, we get

A=\pi (3)^2

A=9\pi

It is given that the shaded sector above covers \dfrac{1}{3} of the circle.

The area of shaded sector =\dfrac{1}{3}A

                                             =\dfrac{1}{3}(9\pi)

                                             =3\pi

Therefore, the area of shaded sector is 3π sq. cm.

5 0
3 years ago
Solve by the substitution method 7x+6y = -17 -3x+y =18
Novay_Z [31]
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3 years ago
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jeka57 [31]

Answer:

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Step-by-step explanation:

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Read 2 more answers
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