Simplify. Assume that variables can represent any real number.
A. 7t
B. 24
C. 7
D. 7t2
Answer: C
Mathematics
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Express the sum using summation notation.
- 
+ 
- ... + (-1)(9 + 1) 
9
A. 
k
B. 
C. 
k
D. 
k
Mathematics
Solve.P = 
for t
A. t = 
B. t = P - rA
C. t = 
D. t = 
Mathematics
Solve the problem.A rectangular enclosure must have an area of at least 3600 yd2. If 
of fencing is to be used, and the width cannot exceed the length, within what limits must the width of the enclosure lie?
A. 40 yd ? width ? 65 yd B. 0 yd ? width ? 40 yd C. 40 yd ? width ? 90 yd D. 65 yd ? width ? 90 yd
Mathematics
If the sequence is arithmetic, find the common difference. If the sequence is not arithmetic, say so.4, 16, 64, 256, 1024, . . .
A. 16
B. 4
C. 
D. Not arithmetic
Mathematics