Write the complex number in the form a + bi.3(cos 270° + i sin 270°)
A. 3i
B. -3
C. 3
D. -3i
Answer: D
Mathematics
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Enrollment at a certain university t years after calendar year 2000 is given by
.
According to the model, for which calendar year will enrollment reach 24,363.00? Round your answer to the nearest whole number.
?
A. 2010 B. 2007 C. 2005 D. 2012
Mathematics
Rotate the axes so that the new equation contains no xy-term. Graph the new equation.5x2 - 6xy + 5y2 - 8 = 0
A. 
B. 
Mathematics
Add.31,223 + 24,133 + 11,221
A. 66,667 B. 56,677 C. 66,577 D. 76,477
Mathematics
Write the augmented matrix for the system.
A. 
B. 
C. 
D. 
Mathematics