Solve the problem.The magnitude of an earthquake, measured on the Richter scale, is given by 
where I is the amplitude registered on a seismograph located 100 km from the epicenter of the earthquake, and I0 is the amplitude of a certain small size earthquake. Find the Richter scale rating of an earthquake with an amplitude of 63,096 I0.
A. 4.8
B. 3.8
C. 0.48
D. 11.1
Answer: A
Mathematics
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Predict the general, or nth term, an, of the sequence.2, 4, 6, 8, 10, . . .
A. n + 2 B. 3n C. n2 D. 2n
Mathematics
Write a polynomial for the length of the rectangle. 
A. (-4x + 3y) B. (3x + 4y) C. (3x - 4y) D. (3x - 4)
Mathematics
Find the real solutions, if any, of the equation. Use the quadratic formula and a calculator. Express any solutions rounded to two decimal places.x2 + 
x - 3 = 0
A. {-2.8, -1.07} B. {-2.8, 1.07} C. {-2.8, 2.8} D. {-1.07, 2.8}
Mathematics
Solve the system of equations.x - y + z = 10x + y + z = 6x + y - z = 0
A. ? B. {(5, 3, -2)} C. {(3, 5, -2)} D. {(5, -2, 3)}
Mathematics