Simplify the expression.
A. 
B. 
C. a - 2b + 1
D. a - b
Answer: D
Mathematics
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Solve the problem.7 + 11 + 15 + . . . + 223 =
A. 
B. 
C. 
D. 
E. none of these
Mathematics
Solve the logarithmic equation.log2(-2 - 3x) = 2
A. 
B. 
C. {-2}
D. {2}
Mathematics
Write the slope-intercept form of the equation for the line passing through the given pair of points.(10, -1) and (5, -4)
A. y = 
x - 
B. y = 
x - 7
C. y = - 
x - 
D. y = - 
x - 7
Mathematics
Find the sum, if it exists, of the terms of the infinite geometric sequence.a1 = 1, r = 
A. 
B. 
C. 
D. Does not exist
Mathematics