Solve the problem.A certain radioactive isotope has a half-life of approximately 1750 years. How many years to the nearest year would be required for a given amount of this isotope to decay to 35% of that amount?
A. 1138 yr
B. 1088 yr
C. 2651 yr
D. 2616 yr
Answer: C
Mathematics
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Find the missing parts of the triangle.B = 27.4°b = 11.68a = 24.0
A. A = 14.7°, C = 138.9°, c = 39.68 B. A = 12.7°, C = 138.9°, c = 37.68 C. A = 13.7°, C = 138.9°, c = 35.68 D. No solution
Mathematics
Graph the solution set of the system.3x + 2y ? -6 x - 1 ? 0
A. 
B. 
C. 
D. 
Mathematics
Solve.
+ 
+ 
= 7
A. 
B. 
C. 
D. 
Mathematics
Write the expression in the standard form a + bi.(1 - 8i)2
A. 1 - 16i + 64i2 B. -63 - 16i C. 65 - 16i D. -63
Mathematics