The given pattern continues. Write down the nth term of the sequence {an} suggested by the pattern.2, -4, 6, -8, ...
A. an = (-1)n ? 2n
B. an = (-1)n ? 2
C. an = (-1)n + 1 ? 2n
D. an = (-1)n + 1 ? 2
Answer: C
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Solve the right triangle for all missing sides and angles to the nearest tenth.
c = 34.9B = 22.3°
A. A = 67.7°, a = 37.7, b = 92 B. A = 67.7°, a = 92, b = 37.7 C. A = 67.7°, a = 32.3, b = 13.2 D. A = 67.7°, a = 85.1, b = 92
Solve. Give your answer as a mixed numeral.A courier distributes packages along two routes. The northern route can be completed in 5
minutes, whereas the southern route takes 9
minutes. Find the total time it takes to complete the deliveries for one month if the northern route is taken 29 times and the southern route 50 times.
A. 585
min
B. 104
min
C. 314
min
D. 629
min
An 
on a circle is _____________: .
What will be an ideal response?
Simplify the expression.12 + 23 ? 11
A. 287 B. 46 C. 265 D. 385