Find the exact value of each expression, if it is defined.
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not defined, not defined, -? / 4
Mathematics
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Determine whether the number is divisible by 2, 3, 4, 5, 6, 8, 9, and/or 10.40
A. 2, 4, 5, 8 B. 2, 4, 5 C. 2, 4, 5, 10 D. 2, 4, 5, 8, 10
Mathematics
Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.25x2 - 80xy + 64y2
A. (5x - 8y)(5x + 8y) B. (5x + 8y)2 C. (25x + y)(x + 64y) D. (5x - 8y)2
Mathematics
Solve.One pump can drain a pool in 9 minutes. When a second pump is also used, the pool only takes 6 minutes to drain. How long would it take the second pump to drain the pool if it were the only pump in use?
A. 3
min
B. 51 min
C. 
min
D. 18 min
Mathematics
Graph the set on a number line.(-?, 2]
A. 
B. 
C. 
D. 
Mathematics