Find the LCD of the list of fractions.
, 
, 
A. 18
B. 90
C. 30
D. 45
Answer: B
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Graph the unit circle using parametric equations with your calculator set to degree mode. Use a scale of 5. Trace the circle to find all values of t between 0° and 360° satisfying the statement.
?
?
__________
What will be an ideal response?
Express the sum using summation notation. Use 1 as the lower limit of summation and i for the index of summation.a + ar + ar2 + . . . + ar14
A. 
B. 
C. 
D. 
Provide an appropriate response.When a certain integer is multiplied by -9, the result is -720. What is that integer?
A. - 
B. 80
C. 
D. -80
Answer the question.If n is an odd number, then which of the following statements is true?
A. The equation xn - 1 = 0 has an odd number of nonreal roots. B. The equation xn - 1 = 0 has n - 1 roots. C. The equation xn - 1 = 0 has exactly one real root. D. The equation xn - 1 = 0 has an even number of real roots.