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AlladinOne [14]
2 years ago
8

Need help asap!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
jonny [76]2 years ago
5 0

Answer:

I needed this points but doesn't know the answer sorry

Step-by-step explanation:

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Find sin x/2, cos x/2, and tan x/2, if cos x = -12/13, 180 degrees is less than x which is less than 270 degrees
Rashid [163]
Cos x = -12/13
sin x = -sqrt(13^2 - 12^2) / 13 = -5/13
tan x = 5/12

tan x/2 = (1 - cos x) / sin x = 1 - (-12/13) / -5/13 = 25/13 * -13/5 = -5

2sin^2 x/2 = 1 - cos x = 1 - (-12/13) = 25/13
sin^2 x/2 = 25/13 / 2 = 25/26
sin x/2 = 5/√26

sin x/2 / cos x/2 = tan x/2
cos x/2 = sin x/2 / tan x/2 = 5/√26 / -5 = -1/√26

sin x/2 = 5/√26
cos x/2 = -1/√26
tan x/2 = -5
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3 years ago
A circle is placed in a square with a side length of 10 mm, as shown below. Find the area of the shaded region.
elena-14-01-66 [18.8K]

Answer:

21.5

Step-by-step explanation:

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3 years ago
a drivet who drives at a speed of r mph for t hr will travel a distance d mi giveb by d = rt mi. how far will a driver travel at
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D = RT ,
D = 59 × 5
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3 years ago
A reading teacher recorded the number of pages read in an hour by each of her
Ymorist [56]

Answer:

the lower quartile should be 43.5, not 44, therefore the 3 is the wrong statistic

Step-by-step explanation:

8 0
3 years ago
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