Solve the problem.The decay of 666 mg of an isotope is given by 
where t is time in years. Find the amount left after 71 years.
A. 653
B. 81
C. 161
D. 158
Answer: C
Mathematics
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Find the mode or modes.86, 25, 86, 13, 25, 29, 56, 86
A. 25 B. 86 C. 42.5 D. 50.8
Mathematics
Find the center-radius form for the circle having the given endpoints of a diameter.(0, 3) and (0, -3)
A. x2 + (y - -3)2 = -3 B. x2 + y2 = 9 C. x2 + (y - -3)2 = 9 D. x2 + y2 = -3
Mathematics
Show that the statement is not an identity by finding a value of 
that makes the statement false.
?
What will be an ideal response?
Mathematics
Solve the equation.4
+ 4 = 16 Round your answer to the nearest hundredth.
A. {-3 , 3} B. {3} C. {0, 0} D. {0}
Mathematics