Solve the equation.
= 
A. {5}
B. 
C. {13}
D. 
Answer: A
Mathematics
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Evaluate the expression.16.3 ÷ 0.4(0.3) + (1.6)2
A. 12.585 B. 18.985 C. 14.785 D. 16.285
Mathematics
The graph of a function is given. Decide whether it is even, odd, or neither.
A. even B. odd C. neither
Mathematics
Give all possible rational zeros for the polynomial.f(x) = 2x3 - 5x2 + 7x - 13
A. ±1, ± 
, ±2, ± 
B. ±1, ±2, ±13, ± 
C. ±1, ±13, ± 
, ± 
D. ±1, ±2, ±13
Mathematics
The Richter scale converts seismographic readings into numbers for measuring the magnitude of an earthquake according to this function M(x) = log 
, where x0 = 10-3.What is the magnitude of an earthquake whose seismographic reading is 0.94 millimeters at a distance of 100 kilometers from its epicenter? Round the answer to four decimal places.
A. -0.0269 B. 2.9731 C. 0.9731 D. -3.0269
Mathematics