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. 3+ 7
C.
D.

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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

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Use radical notation to rewrite.(a2/3 - b3/2)1/3

A. 3 - 
B.  - 
C.
D.

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Graph the inequality on a number line.(2, 5]

A.
B.
C.
D.

Mathematics