Simplify. Write your answer in the form a + bi, where a and b are real numbers.(-11 + 13i) - (7 - 4i)
A. 4 - 17i
B. -18 - 17i
C. -18 + 17i
D. -4 - 17i
Answer: C
Mathematics
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Solve the problem.Apply 6% sales tax to the purchase of a $670 camera to find the total after tax. List the multiplier and the result. Round your answers to the nearest cent.
A. 1.06; $1072.00 B. 1.06; $710.20 C. 1.06; $716.90 D. 1.06; $703.50
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Find the square root if it is a real number, or state that the expression is not a real number.-
A. -0.2 B. 0.02 C. -0.02 D. not a real number
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Solve.A regular pentagon has a side length of 8 m. Find its perimeter.
A. 48 m B. 40 m C. 32 m D. not enough information given
Mathematics