Evaluate the following expression.
?
72· 7
?
A. 225
B. 347
C. 3375
D. 346
E. 343
Answer: E
Mathematics
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Solve by the substitution method.9x - 7y = 417x + 5y = 11
A. (3, -2) B. (3, -1) C. (41, 11) D. (2, -1)
Mathematics
Write the first four terms of the sequence.an = (-3)n
A. -1, 8, -27, 64 B. -1, -3, -9, -27 C. -3, -9, -27, -81 D. -3, 9, -27, 81
Mathematics
Determine the slope and y-intercept of the function.G(x) = -2x
A. m = - 
; b = 0
B. m = -2; b = 0
C. m = 2; b = 0
D. m = 0; b = -2
Mathematics
Simplify the expression.-82
A. 64 B. -64 C. -16 D. 81
Mathematics