Write expanded notation.7912
A. 2 thousands + 1 hundreds + 9 tens + 7 ones
B. 7 hundreds + 1 tens + 9 ones
C. 7 thousands + 9 hundreds + 1 tens + 2 ones
D. 7912 thousands
Answer: C
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Solve the problem.Two sailboats leave a harbor in the Bahamas at the same time. The first sails at 23 mph in a direction 330°. The second sails at 29 mph in a direction 210°. Assuming that both boats maintain speed and heading, after 3 hours, how far apart are the boats?
A. 130.6 mi B. 135.4 mi C. 85.9 mi D. 100.6 mi
Write the expression in terms of sines and/or cosines, and then simplify.cot x sin x - tan x cos x
A. 
B. 
C. 
D. cos x - sin x
Convert the given interest rate to decimal form if it is given as a percentage, and to a percentage if it is given in decimal form.0.05 to percent
A. 0.0005% B. 5% C. 50% D. 0.05%
Find the cube root of the number. Approximate the answer to the nearest hundredth whenever appropriate.27x9
A. 27x6 B. 3x3 C. 27x3 D. 3x6