Solve the problem.An airplane leaves Los Angeles for Denver at a speed of 430 mph. Thirty minutes later, a plane going from Denver to Los Angeles leaves Denver, which is 850 miles from Los Angeles, at a speed of 510 mph. When they meet, how far are they from Denver?
A. 120 mi
B. 345 mi
C. 300 mi
D. 60 mi
Answer: B
Mathematics
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A. Domain: All real numbers; range: All real numbers B. Domain: All real numbers; range: y ? -13 C. Domain: All real numbers; range: y ? 0 D. Domain: x ? 0; range: All real numbers
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Use the change-of-base formula to find the logarithm. Round your answer to four decimal places. log100 30
A. 3.4012 B. 0.7386 C. 1.354 D. 4.6052
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A. 45° B. 0° C. 90° D. 180°
Mathematics