List the first n terms of the geometric sequence satisfying the given conditions.a1 = 4, r = 
, n = 4
A. 
, 
, 
, 
B. 4, 12, 36, 108
C. 4, 
, 
, 
D. 4, 
, 
, 5
Answer: C
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Write the inequality using interval notation, and illustrate the inequality using the real number line.t ? 2
A. [2, ?]
B. [2, ?)
C. (2, ?)
D. (2, ?]
Find the product using the FOIL method.(x - 11)(x - 1)
A. x2 - 13x + 11 B. x2 - 12x + 11 C. x2 + 11x - 12 D. x2 - 12x - 12
The rate of change 
of the total number, in thousand of articles, of research articles in the prominent journal Physics Review written by researchers in Europe is shown in the graph, where t is time in years 
represents the start of 1983). Use both left and right Riemann sums with 8 subdivisions to
estimate the total number of articles in Physics Review written by researchers in Europe in the 16-year period beginning 1983. (Estimate each value of 
to the nearest 0.5). Use the sums to obtain an estimate of 
.
? 
?
A. 9,000 articles
B. 50,500 articles
C. 46,000 articles
D. 4,500 articles
E. 55,000 articles
?Solve the system by the method of substitution.
?
?
?
A. ?(-1, -3) B. ?(-3, 1) C. ?(1, -3) D. ?(3, 1) E. ?(1, 3)