Estimate by rounding.
A. 800
B. 400
C. 500
D. 452
Answer: B
Mathematics
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Solve the problem.If tan ? = x + 1 and tan ? = x - 1, show that cot(? + ?) = 
What will be an ideal response?
Mathematics
Solve.Mark is filling decorative oil lamps for a reception. Each lamp can hold 
cup of oil. Mark has 2
cups of oil available. How many oil lamps can Mark fill completely?
A. 9
oil lamps
B. 11 oil lamps
C. 10 oil lamps
D. 12 oil lamps
Mathematics
Find the variation equation for the variation statement.t varies directly as r and inversely as s; t = 3 when r = 27 and s = 72
A. t = 
B. t = 8rs
C. t = 
D. t = 
Mathematics
Find the product and simplify. Assume all variables represent nonnegative real numbers.(7 + 2
)2
A. 49 - 4n
B. 49 + 28
+ 4n
C. 49 + 4n
D. 49 - 28
+ 4n
Mathematics