Answer:
x=-2
Step-by-step explanation:
3x+3*2x=-18
3x+6x=-18
9x=-18
x=-2
Answer:
positive
Step-by-step explanation:
To solve this, we can look at the unit circle (see attached photo), We know:
(0,1) = π/2
(-1, 0) = π
(0, -1) = 3π/2
(1, 0) = 0
Across the circle, we know that π/3 is between 0 and π/2. Therefore, as the unit circle line between that is positive in the x direction (cos), we can say that cos(π/3) is positive
You add a 0 to 3.2 so it can be any number between 3.20 and 3.26...
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To find x, let's simplify 3/6 to see if we have a factor.
3/6 = 1/2, so x is 1/2 of 8.
Divide 8 by 2 or multiply 8 by 0.5.
X = 4.
I hope this helps!