Determine whether the vectors 
and 
are equivalent.A(-8, 1), B(-16, 4), C(-7, -2), and D(-15, 1)
A. Equivalent
B. Not equivalent
Answer: A
Mathematics
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Perform the indicated operation and simplify.
+ 
A. 
B. 3m + 7
C. 
D. 
Mathematics
Solve the problem.The half-life of an element is 4.2 × 1012 yr. How long does it take a sample of the element to decay to 
of its original mass? Use 
where A0 is the initial amount, T is the half-life, and t is the time. (Express results in scientific notation, rounded to the nearest hundredth.)
A. 5.07 × 1012 yr B. 2.46 × 1012 yr C. 1.21 × 1012 yr D. 1.18 × 1012 yr
Mathematics
Use radical notation to rewrite.(a2/3 - b3/2)1/3
A. 3
- 
B. 
- 
C. 
D. 
Mathematics
Graph the inequality on a number line.(2, 5]
A. 
B. 
C. 
D. 
Mathematics