Find the exact value of the expression, if possible. Do not use a calculator.tan-1 

A.
B. - 
C. - 
D.


Answer: C

Mathematics

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Find the derivative of y with respect to x, t, or ?, as appropriate.y = ln 4x

A. - 
B. - 
C.
D.

Mathematics

Solve the problem.Six freshmen move into a dormitory suite at the beginning of the semester. In order to get to know one another, they decide to have breakfast in pairs for the next few days, each student having a different breakfast partner each day until each student has had breakfast with all other students exactly once. Draw a graph with vertices representing students and edges representing breakfast dates. How many breakfasts will occur? How many days will the process take?

What will be an ideal response?

Mathematics

Solve the problem using the elimination method.There were 560 people at a play. The admission price was $2 for adults and $1 for children. The admission receipts were $780. How many adults and how many children attended?

A. 195 adults and 365 children B. 340 adults and 220 children C. 220 adults and 340 children D. 170 adults and 390 children

Mathematics

Solve the triangle, if possible. If the triangle represents the ambiguous case, solve for all possible triangles. Approximate values to the nearest tenth when appropriate.

A. ? = 97°, a = 12.4, b = 21.9 B. ? = 103°, a = 12.6, b = 22.3 C. ? = 103°, a = 62.2, b = 35.1 D. ? = 103°, a = 22.3, b = 12.6

Mathematics