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Verizon [17]
3 years ago
11

The amplitude of y = -2 sin 3x is need help fast

Mathematics
1 answer:
wel3 years ago
4 0
The amplitude is 2. Amplitude is always positive and is the number in front of sin, cos, tan, csc, sec, cot
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What is the length of side c, given a = 10, b = 8, and c = 105°?
posledela
We can calculate using cosinus method in triangle
c² = a² + b² - 2ab cos c

Plug in the number to the formula
c² = a² + b² - 2ab cos c
c² = 10² + 8² - 2(10)(8) cos 105°
c² = 100 + 64 - 160 cos 105°
c² = 164 - 160 (-0.26)
c² = 164 + 41.6
c² = 205.6
c = √205.6
c =14.34

C is 14.34 unit length
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