Find the products AB and BA to determine whether B is the multiplicative inverse of A.A = 
,B = 
A. B = A-1
B. B ? A-1
Answer: B
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Solve the problem.The half-life of silicon-32 is 710 years. If 50 grams is present now, how much will be present in 700 years? (Round your answer to three decimal places.)
A. 25.245 g B. 0 g C. 0.054 g D. 46.697 g
Find two paths of approach from which one can conclude that the function has no limit as (x, y) approaches (0, 0).f(x, y) = 
What will be an ideal response?
Find all values of x in the interval [0°, 360°) that satisfy the equation. Round approximate answers to the nearest tenth of a degree.3 cos2 x + 2 cos x = 1
A. {51.8°, 128.2°} B. {49.8°, 130.2°, 229.8°, 310.2°} C. {70.5°, 180°, 289.5°} D. {103.2°, 145.2°, 283.2°, 325.2°}
Solve the quadratic equation.x2 + 3x - 88 = 0
A. {-11, 8} B. {-8, 11} C. {-11, 1} D. {8, 11}