Find the exact value of the expression.cos 45°

A.
B.
C.
D.


Answer: B

Mathematics

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Use the given information to find the exact value of the trigonometric function.cos ? = - ; sin ? > 0Find cos .

A.
B. - 
C. - 
D.

Mathematics

Find the following using a calculator. Round to four decimal places.ln 0

A. -2.3149 B. -2.2792 C. Does not exist D. -2.2903

Mathematics

Find the area of the rectangle.  6 mi

A. 24 sq mi B. 32 sq mi C. 39 sq mi D. 36 sq mi

Mathematics

Find an equation of the line with the given slope that passes through the given point. Write the equation in the form m = ; (-6, 10)

A. x - 4y = -64 B. x - 4y = -46 C. 4x - 4y = -46 D. x - 4y = 46

Mathematics