Answer: (5, -2)
Step-by-step explanation:
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Substitute x-7 for y in 2nd equation
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Solve for y
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Answer:
x ∈ {2π/3, π, 4π/3} ≈ {2.09440, 3.14159, 4.18879}
Step-by-step explanation:
The equation can be put into standard form by adding 1:
2cos²(x) +3cos(x) +1 = 0
(2cos(x) +1)(cos(x) +1) = 0
Values of cos(x) that make this true* are ...
cos(x) = -1/2 . . . . . . . . . true for x=2π/3, x=4π/3
cos(x) = -1 . . . . . . . . . . . true for x=π
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A graphing calculator can be helpful here, too.
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* from your knowledge of the short table of trig functions and their signs in different quadrants
Answer:
6
Step-by-step explanation:
Answer:
By 25%
Step-by-step explanation:
150-120=30 30/120=1/4 1/4=25%
Check:
120x.25=30 30+120=150
Hope this helps
Whats ur favortie pokemon? (:
to get from 15 to 12 you subtract 3
to get from 12 to 17 you add 5
to get from 17 to 14 you subtract 3
to get from 14 to 19 you add 5
so, based on this pattern you can assume that you can get the next number by subtracting 3 from 19. so that means you'd do 19-3 and you would get 16 as your answer.
your answer is C.16
Hope this helps :)