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fredd [130]
3 years ago
6

URGENT If the sine of a certain angle is 12/13, what could the cosine of that angle be?

Mathematics
1 answer:
True [87]3 years ago
7 0

Answer:

5/13

Step-by-step explanation:

Sine is equal to the length of the opposite side divided by the length of the hypotenuse, while cosine is equal to the length of the adjacent side divided by the hypotenuse. Since you know that the opposite side has length 12 and the hypotenuse has length 13, you can use the pythagorean theorem to find that the length of the third (adjacent) side is \sqrt{13^2-12^2}=5. Therefore, the cosine of that angle is 5/13. Hope this helps!

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Of 5
patriot [66]

Answer:

Let me take 2,3,3 be 2x, 3x, 3x

Colin = 2x

Natasha = 3x

Angad = 3x

The equation forms to find out the value of x

2x + 3x + 3x = 48

=> 8x = 48

=> x = 48/8

=> x = 6

So share of Colin = 2x = £(2×6) = £12

Share of Natasha = 3x = £(3×6) = £18

share of Angad = 3x = £(3×6) = £18

For proof

£12 + £18 + £18 = £48

Hope it helps

8 0
3 years ago
On the beach are 2 towels. On each towel<br> are 4 buckets. How many buckets are there<br> in alle
Ahat [919]

Dude, are u serious?

The answer would be 2*4,

Which it's 8

the answer is 8

Hope it helps!!!!

4 0
4 years ago
Read 2 more answers
A TV that usually sells for $171.38 is on sale for 15% off. If sales tax on the TV is 9%, what is the price of the TV, including
siniylev [52]

Answer:

171.38 - 15% plus tax= 171.23

Hope this helped!

3 0
3 years ago
Read 2 more answers
15 points PLEASE ANSWER
Xelga [282]

Answer:

D. (25π - 50) sq m

Step-by-step explanation:

Since ABCD is a square with the area of 100, we know that the dimensions are 10 by 10. With that, we can find that triangle ABC = 50 sq m because of (h*l)/2. Since A is the center of the circle that contains arc BD, we know that 10 is the radius of the quarter-circle ABC. Using (πr^2)/4 to get the area of the quarter-circle, we get that the quarter-circle ABC = 25π sq m. But the original triangle ABC in the quarter-circle is not shaded. Therefore, we subtract 50 from 25π, which leads to (25π - 50) sq m.

I hope this helped! :D

4 0
3 years ago
These two area models represent 2323 and 6969. Choose the equation that shows why 2323 and 6969 are equivalent.
grandymaker [24]
Well lets lay it out


     2323      6969
 
     first get 2323 and try its multiples.

     2323 x 2 = 4646
     2323 x 3 = 6969
  
   so what 2323 and 6969 have in common are the multiple 3

Answer: they are equivalent because they can be divided into each other. HOPE I  HELPED!! :P <span />
5 0
4 years ago
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