Solve the equation and check.
A. y = 1
B. y = 8
C. y = 5
D. y = 3.2
E. y = 4
Answer: A
Mathematics
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Solve the problem.A lumber yard has fixed costs of $5388.00 per day and variable costs of $0.54 per board-foot produced. Lumber sells for $2.54 per board-foot. How many board-feet must be produced and sold daily to break even?
A. 1749 board-feet B. 9977 board-feet C. 1796 board-feet D. 2694 board-feet
Mathematics
Add the given pair of complex numbers geometrically.z1 = 5i, z2 = 6
A. 11i B. 6 - 5i C. 5 + 6i D. 6 + 5i
Mathematics
Evaluate the expression.cot 450°
A. Undefined
B. 1
C. 0
D. 
Mathematics
Write the number in scientific notation.7,859,000,000
A. 7.859 × 109 B. 785.9 × 107 C. 7859 × 106 D. 7.859 × 106
Mathematics