Find the general term, an, of the given arithmetic sequence.1, 4, 7, 10, 13, . . .
A. an = 2n - 3
B. an = n + 3
C. an = 3n - 2
D. an = 1(3)n-1
Answer: C
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Provide an appropriate response.A bricklayer plans to build an arch in a garden with a span (s) of 1 m and a radius (r) of 
m. How high (h) is the arch? Use the formula h2 - 2hr + 
= 0
A. 1.0 m B. 0.5 m C. 2.4 m D. 0.25 m
A pair of similar triangles is given. Write the corresponding angles and the ratios of the corresponding sides.
A. ?A ? ?L
?B ? ?N
?C ? ?M
= 
= 
B. ?A ? ?L
?B ? ?N
?C ? ?M
= 
= 
C. ?A ? ?L
?B ? ?M
?C ? ?N
= 
= 
D. ?A ? ?L
?B ? ?M
?C ? ?N
= 
= 
Solve the problem.A drugstore sells two types, A and B, of humidifiers. Each humidifier of type A and type B costs $15 and $25, respectively. The store wants at least 9 humidifiers in stock and does not want its investment in the humidifiers to exceed $1500. Graph the possible inventory of the humidifiers and find the vertices. 
A. 
B. 
C. 
D. 
Evaluate the given binomial coefficient.
A. 21 B. 10 C. 2520 D. 3