Let Q represents a mass of radioactive radium 
(in grams), whose half-life is 1,599 years. The quantity of radium present after t years is 
. Determine the quantity present after 500 years. Round to the nearest hundredth of a gram, if necessary.
a. 0 g
b. 0.31 g
c. 0.81 g
d. 1.61 g
e. 2 g
d. 1.61 g
Mathematics
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Provide an appropriate response. Find the area of an isosceles triangle with b = 12 m and h = 15 m.
A. 180 m2 B. 90 m2 C. 45 m2 D. 360 m2
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Multiply.(716.93)(100)
A. 716,930 B. 7.1693 C. 71,693 D. 716.9300
Mathematics
Use technology to calculate det A.A = 
A. -68 B. -18 C. 68 D. -8
Mathematics
Indicate whether the number is a proper fraction, an improper fraction, or a mixed number.
A. Mixed number B. Proper fraction C. Improper fraction
Mathematics