Solve the problem.Mary finds 10 fish at a pet store that she would like to buy, but she can afford only 4 of them. In how many ways can she make her selection? How many ways can she make her selection if he decides that one of the fish is a must?
A. 151,200; 60,480
B. 5040; 504
C. 2520; 252
D. 210; 84
Answer: D
Mathematics
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Use the theoretical probability formula to solve the problem. Express the probability as a simplified fraction.A die is rolled. Find the probability of getting a 2.
A. 
B. 0
C. 2
D. 
Mathematics
Arrange the group of numbers in order, from least to greatest.8.67, 8
, 8.667, 8
A. 8
, 8
, 8.667, 8.67
B. 8
, 8
, 8.67, 8.667
C. 8
, 8.67, 8.667, 8
D. 8
, 8
, 8.667, 8.67
Mathematics
Solve the following system by any appropriate method. If there is no real number solution, so state.3x2 - y2 = 14x2 + 2y2 = 14
A. (
, 2), (
, -2), (-
, 2), (-
, -2)
B. (
, 4), (
, -4), (-
, 4), (-
, -4)
C. (
, 2), (
, -2), (-
, 2), (-
, -2)
D. no real solution
Mathematics
Find the difference.-4.8 - 11.0
A. -6.2 B. 6.2 C. 15.8 D. -15.8
Mathematics