Answer:
330
Step-by-step explanation:
When we are at 30 degrees on the unit circle, we are at the point (
/2, 1/2) so if we go to -30 degrees (330 degrees), we will be at point (-
/2, -1/2).
Note: (cosine, sine)
Answer:x=3/2 or -1
Step-by-step explanation:
Answer:
A.
Step-by-step explanation:
playing in the garden
The standard form of a circle is

where h and k are the center and x and y are the coordinates you're given. We need to solve for the radius to finish this off correctly. Filling in, we have

and

, giving us that

. Therefore, our equation is
Point are set up (x,y) you sub the number for x into the equation and see if you get the number for y.
y=4x+3
y=4 (5)+3
y=20+3
y=23
so A isn't the answer
y=4 (17)+3
y=68+3
y=71
B isn't the answer
y=4 (4)+3
y=16+3
y=19
and because 4 is the x value for c and d and there can only be 1 y value for each x you're answer is C because when x=4 y =19 or (4,19)