Divide.42 ÷ 6
A. -7
B. 7
C. 36
D. -36
Answer: B
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Find y '.y = 
A. - 
- 4x
B. 
+ 4x
C. 
+ 4x
D. - 
+ 4x
Solve the problem.A manufacturer uses raw materials to produce p products each day. Suppose that each delivery of a particular material is $d, whereas the storage of that material is x dollars per unit stored per day. (One unit is the amount required to produce one product). How much should be delivered every x days to minimize the average daily cost in the production cycle between deliveries?
What will be an ideal response?
Solve the problem.When you buy an item on which sales tax is charged, the total cost is calculated by the formula: 
where T is the total cost, P is the item's price, and S is the sales tax rate (as a percent). If you pay $14.77 for an item priced at $14, what was the tax rate?
A. 6.5% B. 5.5% C. 2.75% D. 7.5%
Perform the indicated operation and simplify. Write the answer in the form a + bi.(7 - 6i) + (4 - 4i)
A. 11 - 2i B. -11 - 10i C. 11 - 10i D. 11 + 10i