Solve the problem. Solve the differential equation model of radioactive decay:
= -0.2Q.
A. Q(t) = Q0e-t
B. Q(t) = Q0e-0.2t
C. Q(t) = 
+ Q0
D. Q(t) = -Q0ln 0.2t + c
Answer: B
Mathematics
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Determine whether or not B = A-1.A = 
B = 
A. Yes B. No
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For the given arithmetic series, what is Sn?a1 = 23, d = -4, and n = 16
A. -89 B. -112 C. -224 D. -448
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Find the center of the hyperbola.
- 
= 1
A. (-4, 6) B. (-6, 4) C. (8, -4) D. (6, -4)
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Use the formula for the general term (the nth term) of an arithmetic sequence to find the indicated term of the sequence with the given first term, a1, and common difference, d.Find a16 when a1 = 23, d = -6.
A. 113 B. -67 C. -73 D. -90
Mathematics