Find the indicated term of the arithmetic sequence.Given an arithmetic sequence with d = 8 and a5 = 28, find a20.
A. 148
B. 157
C. 232
D. 237
Answer: A
Mathematics
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Solve.x2 - 3x - 18 < 0
A. (-?, -3) ? (6, ?) B. (6, ?) C. (-3, 6) D. (-?, -3)
Mathematics
Find the value of the expression without using a calculator.2log4 10
A. 20
B. 
C. 10
D. 100
Mathematics
Determine the domain and range of the relation.{(1, -1), (7, -2), (8, -4), (3, -1)}
A. Domain: {1, 7, 8, -3}; range: {-1, -2, -4} B. Domain: {1, 7, 8, 3}; range: {-1, -2, -4} C. Domain: {-1, -2, -4}; range: {1, 7, 8, 3} D. Domain: {1, 7, 8, 3}; range: {-1, -2, -4, 6}
Mathematics
Determine where the given function is concave up and where it is concave down. f(x) = x2 - 12x + 40
A. Concave up on (-?, 6), concave down on (6, ?) B. Concave up on (6, ?), concave down on (-?, 6) C. Concave up for all x D. Concave down for all x
Mathematics