Solve the unit problem using the conversion information. Use either a proportion or unit analysis. Round to the nearest hundredth.
Useful facts:
1 square mile = 640 acres
1 mile = 5280 feet
How many square miles are in 20,000 acres?
A) 790.57
B) 31.25
C) 30.05
D) 34.55
E) 20.48
B) 31.25
Mathematics
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Solve the problem.If 4 hours are required to type 12 pages, how many hours would be required to type 21 pages?
A. 3 hr B. 7 hr C. 8 hr D. 2 hr
Mathematics
Use a calculator and the change-of-base formula to find the logarithm to four decimal places.log? 300
A. 1.1447 B. 0.2007 C. 4.9827 D. 5.7038
Mathematics
Factor the trinomial, if possible.(m - 3n)2 - 8(m - 3n) + 16
A. (m + 3n + 4)2 B. (m - 3n + 4)(m + 3n - 4) C. (m - 3n)2 D. (m - 3n - 4)2
Mathematics
Use the properties of logarithms to find the exact value of the expression. Do not use a calculator.log135 15 + log135 9
A. 9 B. 15 C. 1 D. 135
Mathematics