Find the indicated sum. Use the formula for the sum of the first n terms of a geometric sequence.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the indicated trigonometric function of ?.
Find sec A and csc A.
A. sec A = 
; csc A = 
B. sec A = 
; csc A = 
C. sec A = 
; csc A = 
D. sec A = 
; csc A = 
Mathematics
Write the rate as a unit rate.800 miles on 20 gallons of gas
A. 16,000 miles B. 0.025 miles/gallon C. 820 gallons D. 40 miles/gallon
Mathematics
Find the midpoint of the segment PQ.P(-7, 6, 6), Q(3, 11, 16)
A. 
B. 
C. 
D. 
Mathematics
Write the expression in the standard form a + bi.(6 + 9i) - (-8 + i)
A. -2 + 10i B. 14 - 8i C. -14 - 8i D. 14 + 8i
Mathematics