Answer:
B
Step-by-step explanation:
The standard form of a circle is
where h and k are the coordinates of the center of the circle and the radius is squared. The radius is easy...take the square root of 25 to get that the radius is 5. Since the pattern for the standard form is "x-" and "y-", if (x+2)^2 is the horizontal placement of the center, it actually was originally written as (x-(-2))^2, so the h coordinate is -2. Same goes for the vertical movement of the center. (y-(5))^2 means that the k coordinate is a positive 5.
Heads=125
heads to coin flips is 125:300=25:60=5:12
Answer:d
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
the y axic corresponds to the price in dollars so in the ordered paid at point a, the y value 30 means that the price of carpet is $30 for the x value of 20 square feet of carpet
Answer:
The probability is about 7.7%
Step-by-step explanation:
A probability is the ratio of the number of relevant outcomes and the number of all possible outcomes. To answer this question we do some counting first:
Consider two draws. We are interested in the second draw being an Ace, the first draw can either be an Ace or not, so, there are two cases of a relevant outcomes (all without replacement):
(number of relevant oucomes n ) = (number of cases of Ace-Ace draws) + (number of cases of NonAce-Ace draws):
(number of possible outcomes) = (number of choices at first draw) * (number of choices at second draw) = 52 * 51 = 2652
The probability is then
P = 204/2652 = 0.0769, or about 7.7%