Which of the following is a solution to 2cos x + 1 = 0?
1 answer:
The answer is b
2cos x + 1 = 0
2 cos x = -1
cos x = -1/2
x = cos^1(-1/2)
(cos inverse (-1/2))
x = 120°
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18+36y is equal to that equation
The correct answer is D
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Answer:
93
Step-by-step explanation:
5*90 = 450
82+94+89+92 = 357
so
450-357 = 93
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Answer:
1/64
Step-by-step explanation:
10 = ½
20 = ¼
30 = ⅛
40 = 1/16
50 = 1/32
60 = 1/64
Step-by-step explanation:
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