Find the LCD of the list of fractions.

A. 18
B. 90
C. 30
D. 45


Answer: B

Mathematics

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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?

Mathematics

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.

Mathematics

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

Mathematics

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.

Mathematics