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aniked [119]
3 years ago
13

Will Mark brainliest, PLEASE Help!​

Mathematics
1 answer:
Masja [62]3 years ago
5 0

Answer:

a.

\sqrt{ {5}^{4} }   =  {5}^{2}  \\  \sqrt{ {7}^{2} }  = 7 \\  {5}^{2}  \times 7

b.

\sqrt{ {2}^{6} }  =  {2}^{3}  \\  \sqrt{ {11}^{10} }  =  {11}^{5 }  \\  {2}^{3}  \times  {11}^{5}

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erica [24]
We can solve this question in 2 ways: either using degrees or converting the degrees into radians.

Since, the question says degrees itself and there is no specification of using radians only, so I have solved it using degrees itself.

Part (a):

Perimeter of sector ORS = 2*Radius + Arc RS = 2*21 + 60*  \frac{ \pi }{180} *21 =  \frac{ \pi }{3} *21 = 7 \pi

Part (b):

Area of sector ORS = \frac{60}{360} * \pi * 21^{2} =  \frac{1}{6} * \pi *21*21=  \frac{147}{2} \pi

Area of sector POQ = \frac{36}{360} *  \pi * 14^{2} =  \frac{1}{10} *  \pi * 196 =  \frac{196}{10}  \pi

Thus, area of shaded region
= Area of sector ORS - Area of sector POQ

= \frac{147}{2} \pi - \frac{196}{10} \pi =  \frac{735 - 196}{10}  \pi =  \frac{539}{10}  \pi = 53.9 \pi

5 0
3 years ago
What must be added to a^2+3/5a​
kolezko [41]
This question doesn’t really make sense- is it multiple choice, if so what are the options? A can be anything as long as it’s the same?
3 0
2 years ago
Are all trapeziums rhombus. pls answer​
maksim [4K]
No their not they have four sides but their not
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Need help asap please
Gwar [14]

Answer:

The answer is C

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Write an equation of the line that passes through the point (3,-2) with slope -2.
Virty [35]

Answer:

y + 4 = -2(x - 3)

Step-by-step explanation:

Use the point-slope formula y - k = m(x - h).  Substitute -2 for k and 3 for h, as well as -2 for m:

y + 4 = -2(x - 3).

4 0
3 years ago
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