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Anna11 [10]
3 years ago
12

Can some please help me with this one it would be much appreciated

Mathematics
1 answer:
kherson [118]3 years ago
7 0

πAnswer:

Therefore, the area of a sector of a circle would be 13.5π square units.              

Step-by-step explanation:

Given

  • r=9 mi
  • Ф = 60°

The area of a sector of a circle is:

A = π r² Ф/360

A = π (9)² 60/360

A = π 81 * 1/6

A = 13.5π square units

Therefore, the area of a sector of a circle would be 13.5π square units.                        

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One method of trying to find the area of a polygon is to decompose the polygon
lilavasa [31]

Answer: True

You can break the polygon up into smaller pieces such as triangles. Find the area of each triangle, and then add up those smaller areas to get the overall total area.

6 0
3 years ago
2. The cost of 5 pen is Rs 1200, find the cost of 1 pen.​
loris [4]

Step-by-step explanation:

cost of 5 pen is Rs 1200,

cost of 1 pen is 1200/5 = Rs 240

7 0
3 years ago
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If h(x)=x²-5x+7, find the value of h(2), and h(-5)
Anni [7]

Answer:

h(2) = 2^{2}-5(2)+7 = 1

h(-5) = (-5)^{2}-5(-5)+7 = 7

Step-by-step explanation:

8 0
3 years ago
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Through (6,-2), slope = 1/3<br> Write the equation in slope-intercept form.
konstantin123 [22]

Answer:

y=1/3x+4

Step-by-step explanation:

Slope = 1/3

y=1/3x-b

Through (6,-2)

-2=1/3(6)-b

-2=2-b

-4=-b

b=4

y=1/3x+4

Hope this helps!

5 0
3 years ago
Simplify: (sin Θ − cos Θ)2 + (sin Θ + cos Θ)2<br> options are<br> 1<br> 2<br> sin2 Θ<br> cos2 Θ
I am Lyosha [343]

Answer:

2 is the right answer.

Step-by-step explanation:

(sin∅-cos∅)²+(sin∅+cos∅)² in this expression we will open the brackets first by squaring the expressions given inside.

(sin²∅+cos²∅-2sin∅cos∅)+(sin²∅+cos²∅+2sin∅cos∅)

Since (a+b)² = a²+b²+2ab and (a-b)² = a²+b²-2ab

⇒(1-2sin∅cos∅) + (1+2sin∅cos∅)

Since (sin²∅+cos²∅) =1

⇒ 1-2sin∅cos∅+1+2sin∅cos∅

⇒ 1+1

⇒ 2

Therefore the option 2 is right answer.


6 0
4 years ago
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