From the unit circle sin 30 = sin pi/6 = 1/2.
Answer:
0.00001
Step-by-step explanation:
Yes they are because they share the same variables and you can add the numbers.
Answer:
$142.86
Step-by-step explanation:
Let the bonus be x
This implies that
Multiplying through by the L. C. M(that is 12)
Dividing through by 7
Hence her monthly bonus was $142.86
Solve for x over the real numbers:
2 x^2 - 4 x - 3 = 0
Divide both sides by 2:
x^2 - 2 x - 3/2 = 0
Add 3/2 to both sides:
x^2 - 2 x = 3/2
Add 1 to both sides:
x^2 - 2 x + 1 = 5/2
Write the left hand side as a square:
(x - 1)^2 = 5/2
Take the square root of both sides:
x - 1 = sqrt(5/2) or x - 1 = -sqrt(5/2)
Add 1 to both sides:
x = 1 + sqrt(5/2) or x - 1 = -sqrt(5/2)
Add 1 to both sides:
Answer: x = 1 + sqrt(5/2) or x = 1 - sqrt(5/2)
