Write expanded notation.867
A. 867 hundreds
B. 8 hundreds + 6 tens + 7 ones
C. 8 thousands + 6 hundreds + 7 tens
D. 7 hundreds + 6 tens + 8 ones
Answer: B
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Use the imaginary unit to write the expression.
A. -i
B. -11i
C. 11i
D. ±11
Solve.
- 
= 1
A. 3 B. 3, -1 C. -3, -1 D. No solution
Solve the problem.A ceramics workshop makes wreaths, trees, and sleighs for sale at Christmas. A wreath takes 3 hours to prepare, 2 hours to paint, and 8 hours to fire. A tree takes 16 hours to prepare, 3 hours to paint, and 4 hours to fire. A sleigh takes 4 hours to prepare, 14 hours to paint, and 7 hours to fire. If the workshop has 115 hours for preparation time, 61 hours for painting, and 106 hours for firing, how many of each can be made?
A. 10 wreaths, 6 trees, 3 sleighs B. 2 wreaths, 9 trees, 5 sleighs C. 9 wreaths, 5 trees, 2 sleighs D. 5 wreaths, 2 trees, 9 sleighs
The figure shows the graphs of the cost and revenue functions for a company that manufactures and sells binoculars. Use the information in the figure to answer the question.
Use the revenue and cost functions to write the profit function from producing and selling x binoculars.
A. P(x) = 2x + 1500 B. P(x) = 4x + 1500 C. P(x) = 4x - 1500 D. P(x) = 2x - 1500