Use Euler's formula to answer the question.A polyhedron has 15 vertices and 20 faces. How many edges does it have?

A. 34
B. 37
C. 35
D. 33


Answer: D

Mathematics

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Solve the problem.Find the area under the curve y =  bounded on the left by x = 24.

A. 10
B.
C.
D.

Mathematics

Express as a single logarithm and, if possible, simplify.ln cos ? - ln 

A. ln cos ?
B. ln 
C. ln 
D. ln 10

Mathematics

Find the product and write the answer in simplest form. Assume variables represent nonnegative values. ? 

A.
B.
C.
D.

Mathematics

Rationalize each denominator and simplify. ? ? Your answer should be a radical expression.

What will be an ideal response?

Mathematics