Solve the inequality. Graph the solution set, and state the solution set in interval notation.|x + 11| < 7
A. (-?, -4)
B. (-18, -4)
C. (4, 18)
D. (-?, -18)
Answer: B
Mathematics
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Solve the problem.A certain radioactive isotope has a half-life of approximately 850 years. How many years to the nearest year would be required for a given amount of this isotope to decay to 20% of that amount?
A. 274 years B. 1974 years C. 1954 years D. 680 years
Mathematics
Find all degree solutions for the equation
?
in the interval 
.
?
A. 14.5°, 23.8°, 156.2°, 165.5° B. 14.5°, 23.6°, 156.4°, 165.5° C. 14.7°, 23.8°, 156.2°, 165.3° D. 14.1°, 23.2°, 156.8°, 165.9° E. 14.7°, 23.6°, 156.4°, 165.3°
Mathematics
For the given demand equation, differentiate implicitly to find dp/dx.9p2 + x2 = 1300
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Simplify.(2a)4
A. 16a4 B. 16a C. 8a4 D. 8a
Mathematics