Decide which property of addition is illustrated.3 + 0 = 3
A. Inverse
B. Associative
C. Identity
D. Commutative
Answer: C
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Find the convergence set for the given power series.
A. x < 10 B. 8 ? x < 10 C. -10 < x < 10 D. 8 < x < 10
Use the definition to find an expression for the instantaneous acceleration of an object moving with rectilinear motion according to the given function. The instantaneous acceleration is defined as the instantaneous rate of change of the velocity with respect to time. s = 7t4 - 7t2 + 3[s is the displacement. Find v, then find a]
A. 84t2 - 14t B. 84t2 - 14 C. 28t3 - 14t D. 28t2 - 14
Find the solution set of the system by graphing the equations by hand. If the system is inconsistent or dependent, say so.3x + y = 1012x + 4y = 40
A. (0, 10) B. (5, -5) C. all points on the line 3x + y = 10; dependent system D. empty set; inconsistent system
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 7.7 millimeters at a distance of 100 kilometers from its epicenter? Round the answer to the nearest tenth.
A. 2.7 B. 2.9 C. 886.5 D. 3.9