Solve the problem.The half-life of Titanium 45 is 3.1 hours. If the formula 
gives the percent (as a decimal) remaining after time t (in hours), sketch P versus t.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Multiply and simplify. Assume that all variables represent nonnegative numbers.
? 
A. m10
B. m5
C. m15
D. m10
Mathematics
Solve the problem.The sum of two numbers is 72. Four times the larger number minus three times the smaller number is 78. What are the numbers?
A. 26, 46 B. 38, 34 C. 30, 42 D. 26, 39
Mathematics
Use the order of operations to simplify the expression.16 + 18 ? 24
A. 312 B. 816 C. 448 D. 58
Mathematics
Find the vertex of the parabola.y2 + 8x + 2y - 31 = 0
A. 
B. (4, -1)
C. 
D. (0, 4)
Mathematics