Answer/Step-by-step explanation:
Factor this. GCF=2
2(2cos2x+cos x-1)=0
2(2cos x -1)(cos x+1)=0 Set each factor equal to zero and solve
2cos x -1=0 Add 1 to both sides
2cos x =1 Divide by 2
cos x =1/2
x=π/3
x=5π/3
cos x+1=0 Subtract 1 from both sides
cos x=-1
<u><em>x = π</em></u>
<u><em></em></u>
For this case we have the following system of equations:
Equating the equations:
We look for two numbers that when multiplied, get 16, and when added together, get -8.
These numbers are -4 and -4.
So, the solution is
We look for the value of y:
Finally, the solution is:
ANswer:
<u><em>*(The Answer)*=</em></u> The initial value is 4
<u><em>*(The Explanation)*=</em></u> The initial value is basically the y-intercept which is found where the function touches the y-axis
Hope this helps and mark me brainiest. :)
Answer:
164.6
Step-by-step explanation: i'm a human calculator
Answer:
x = 9.6
Step-by-step explanation:
sin Q = 16/20 Q = 53.13° from the big triangle
16/20 = x/12
192 = 20x
x = 9.6