Simplify. 

A. -1
B.
C.
D.
E.


Answer: B

Mathematics

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Evaluate the integral.

A. - cot35x + cot 5x + C
B. - cot35x + cot 5x + x + C
C. - cot35x + cot 5x + x + C
D. - cot35x + cot2 5x + x + C

Mathematics

Answer the following statement(s) true (T) or false (F)

1. If triangle ABC and triangle DEF are both 30°-60° triangles, then AB must be congruent to DE 2. An angle of degree measure 180° is a reflex angle. 3. Postulates are statements we assume to be true without proof. 4. Any three points are contained in exactly one plane. 5. A right triangle has two acute angles.

Mathematics

Graph the system of inequalities. +  ? 1 +  ? 1

A.

B.

C.

D.


Mathematics

Solve the problem.A boy is flying a model airplane while standing on a straight line. The plane, at the end of a twenty-five foot wire, flies in circles around the boy. The directed distance of the plane from the straight line is found to be d = 25 cos where d is measured in feet and t is the time in seconds. If d > 0, the plane is in front of the boy; if d < 0, the plane is behind him. What is the amplitude? What is the period? Graph d over two periods beginning at t = 0. 

What will be an ideal response?

Mathematics