Find the indicated sum. Use the formula for the sum of the first n terms of a geometric sequence.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Use a calculator to find the value of the function in degrees, rounded to the nearest hundredth of a degree.sin-1 0.8521
A. 58.44° B. 53.44° C. 60.44° D. 63.44°
Mathematics
Provide an appropriate response.The two triangles shown below are congruent.?IJK ? 
A. ?MNL B. ?NLM C. ?NML D. ?LMN
Mathematics
Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.F(x) = 8x5 - 5x4 + 4x3 - 9
A. 0, 2, or 4 positive; 0 negative B. 1 positive; 1 or 3 negative C. 1 or 3 positive; 1 or 3 negative D. 1 or 3 positive; 0 negative
Mathematics
Multiply. Write your answer in the form a + bi.(3 - 2i)(6 + 6i)
A. 6 - 30i B. 30 - 6i C. 30 + 6i D. -12i2 + 6i + 18
Mathematics