Evaluate the given binomial coefficient.
A. 2
B. 120
C. 1
D. 0
Answer: C
Mathematics
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Multiply and simplify.(
+ y)(
- y)
A. x - 2y
B. 4x
C. 3x - y2
D. x + 2y
Mathematics
Add or subtract. Write the answer in lowest terms.
- 
A. 
B. 7
C. 
D. 
Mathematics
Solve the problem.Use the graph to determine how many hours were needed to prepare for 
.
A. 5 B. 3 C. 2 D. 1
Mathematics
Find the length of the arc on a circle of radius r intercepted by a central angle ?. (Use ? = 3.142). (Round your answer to three decimal places.) ? Radius r Central angle ? 27 inches 100°?
A. 
2.864 in
B. 
8.593 in
C. 
D. 
E. 
Mathematics