Answer: 
Step-by-step explanation:
this forms a 30 degree reference angle
and this is in the 4th quadrant
When the angle is 30 degrees, the coordinates are:

We can use two different ways to solve this equation:
Because the board is 25 off, we can multiply the price and subtract the result:
30 - 0.25(30) = 30 - 7.5 = $22.50
We can also solve by multiplying the total price by 0.75
(1 - 0.25)(30) = 0.75(30) = $22.50
The sales price is $22.50
Answer:
c=0
Step-by-step explanation:
x² + 11x + 0 = y
x² + 11x + 0 = 0
U already know that y=0 by looking at the equations above,
But your worksheet never state "c", so we will take that c is 0 (look at the equations above.)
So c is just 0.
Answer:
102.8
Step-by-step explanation:
If log₁₀y = 2.012, y = 10^2.012 = 102.8