Find the difference.89.7822 - 67.3863
A. 22.3959
B. 22.2959
C. 22.3859
D. 23.3959
Answer: A
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Divide.
A. 305 B. 320 R 24 C. 315 D. 325 R 32
Convert as indicated. If necessary, round to two decimal places.14 ounces to grams
A. 396.9 g B. 6.3 g C. 30.8 g D. 0.56 g
Provide an appropriate response.What is wrong with adding decimal numbers in the following example?25 + 0.42 = 0.67
What will be an ideal response?
Solve the problem.A nuclear scientist has a sample of 
of a radioactive material which has a half-life in hours. She monitors the amount of radioactive material over a period of a day and obtains the following data. Use a graphing utility to fit an exponential function to the data. Predict the amount of material remaining at 40 hours.
.
A. y = 86e-0.071x, 5.0 mg B. y = 100e-0.077x, 4.6 mg C. y = 92e-0.0686x, 5.9 mg D. y = 100e-0.077x, 6.7 mg