Answer:
See the three attached images.
Step-by-step explanation:
image1 shows the intersection of b and c:
. (green "football")
image2 shows the <u>complement</u> of a (outside a):
(yellow)
image3 shows the intersection of those sets:
(green "football with a bite out of it") :-)
Answer:

Step-by-step explanation:

Add 25 to both sides:


Square root both sides:
(Since a negative number multiplied by itself gives positive, there are two answers.)

9514 1404 393
Answer:
(x, y) = ((√2)/2, (√2)/2))
Step-by-step explanation:
See the attached chart. The 45° angle can be found in the upper-right portion of the chart (1st quadrant).