Establish the identity.
= cot 
What will be an ideal response?
= 
= 
? 
= tan 
cot 
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Solve the problem. Use ? = 3.14 when necessary.A certain marine engine has cylinders that are 3.25 cm in diameter and 4.85 cm deep. Find the total volume of 6 cylinders.
A. 593.9 cm3 B. 482.6 cm3 C. 40.2 cm3 D. 241.3 cm3
Solve the problem.Tides go up and down in a 14.8-hour period. The average depth of a certain river is 7 m and ranges from 4 to 10 m. The variation can be approximated by a sine curve. Write an equation that gives the approximate variation y, if x is the number of hours after midnight and high tide occurs at 5:00 am.
A. y = 7 sin 
B. y = 3 sin 
C. y = 3 sin 
D. y = 7 sin 
Solve the given equation or inequality. If an equation is given, then write the solution set in set notation. If an inequality is given, then write the solution set in interval notation.
+ 0.1 ? 0.7
A. (10.2, 12.6) B. (-?, 10.2] ? [12.6, ?) C. {10.2, 12.6} D. (-?, 10.2] ? [12.6, ?)
Classify the system as either consistent or inconsistent.
A. Consistent B. Inconsistent