+595 Identify the radius of the circle whose equation is (x - 2)2 + (y - 8)2 = 16.
A)2
B)4
C)8
D)16
A standard deck of cards is made up of four suits: diamonds, spades, hearts, and clubs. What is the probability that you draw a diamond or spade from a standard deck of cards?
A)
1/8
B)
1/4
C)
1/2
D)
2/3
+9479 The standard form for the equation of a circle is (x - h)2 + (y - 8)2 = r2 ...where (h, k) is the center of the circle and r is the radius.
So...in this equation: (x - 2)2 + (y - 8)2 = 16
16 = r2
√16 = r
4 = r
2 out of 4 suits are diamonds OR spades...so there is a 2/4 probability of drawing a diamond OR a spade.
2/4 = 1/2
