Solve the problem.Mary finds 9 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. 1512; 168
B. 126; 56
C. 3024; 336
D. 15,120; 6720
Answer: B
Mathematics
You might also like to view...
Solve for the specified variable.S(1 - r) = a, for r
A. r = S - a
B. 
C. r = 
- 1
D. r = 
Mathematics
Evaluate the expression.70
A. 0 B. -1 C. 7 D. 1
Mathematics
Find an equation in slope-intercept form of the line satisfying the specified conditions.Through (-5, 0), parallel to -3x + 2y = 13
A. y = 
x + 
B. y = - 
x - 
C. y = 
x + 
D. y = 
x + 0
Mathematics
Let a and b represent the lengths of the legs of a right triangle and let c represent the length of the hypotenuse. Values for two of the three lengths are given. Find the third length.a = 12 and c = 15
A. 11 B. 14 C. 9 D. 8
Mathematics