Write the expression in the standard form a + bi.If z = 6 - 6i and w = 7 + 4i, evaluate 
.
A. 13 - 2i
B. 13 + 2i
C. -13 + 2i
D. -1 + 10i
Answer: A
Mathematics
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Solve the problem.A railroad bridge is built over a V-shaped canyon. If the supports are 3 feet long at each end, the center support is 253 feet long, and the supports increase in length by 2 feet with each support (from 3 feet to 253 feet), what is the total length of all the supports?
A. 32,003 feet B. 32,001 feet C. 32,005 feet D. 32,000 feet
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If the perimeter of ?ABC is 24 cm, find the length of each side.
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Solve the equation.3(3x - 1) = 12
A. 
B. 
C. 
D. 
Mathematics
Graph the equation.-7y - 5 = -6y
A. 
B. 
C. 
D. 
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