Find the measure of the side of the right triangle whose length is designated by a lowercase letter. Round your answer to the nearest whole number.
A. a = 18 cm
B. a = 1 cm
C. a = 8 cm
D. a = 7 cm
Answer: C
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Express in terms of logarithms of a single variable or a number.log8 
A. log8 15 ? 
log8 r ÷ log8 s
B. log8 (15
) + log8 s
C. log8 s - log8 15 - 
log8 r
D. log8 15 + 
log8 r - log8 s
Solve.A recent advertisement claimed that 2 out of every 3 doctors recommend a certain herbal supplement to increase energy levels. If a local hospital employs 290 doctors, how many doctors would you expect to recommend the supplement? (Round to the nearest whole number, if necessary.)
A. 97 doctors B. 193 doctors C. 435 doctors D. 1740 doctors
Find the reference angle for the given angle.- 
A. 
B. 
C. 
D. 
Describe the situation with a linear inequality and then solve the inequality.When making a long distance call from a certain pay phone, the first three minutes of a call cost $1.60. After that, each additional minute or portion of a minute of that call costs $0.25. Use an inequality to find the number of minutes one can call long distance for $5.85.
A. ? 23 minutes B. ? 4 minutes C. ? 20 minutes D. ? 17 minutes