Rewrite the expression as the logarithm of a single quantity.
log x - 
log y - 
log z
A. log 
B. log 
C. log 
D. log 
Answer: A
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A formula is given along with the values of all but one of the variables in the formula. Find the value of the variable not given. Round to the nearest hundredth where necessary.C = 2?r; C = 12.56, ? = 3.14
A. r = 4 B. r = 78.88 C. r = 15.70 D. r = 2
Find the perimeter.
A. 75 yd B. 74 yd C. 312.5 yd D. 50 yd
Solve the problem. Round your answer to the nearest tenth, when appropriate. Use the formula 
, as needed.Find [H3O+] if the pH = 14.
A. 3.0 x 10-14 B. 1.0 x 1014 C. 1.0 x 10-14 D. 2.0 x 1014
Solve the problem.Adam and David were both driving east on the same highway. At 3:00 P.M., Adam, traveling at 55 miles per hour, was 20 miles east of David. A little later, David, traveling at 65 miles per hour, passed Adam. At what time did David pass Adam?
A. 5:30 P.M. B. 9:00 P.M. C. 7:00 P.M. D. 5:00 P.M.