Evaluate each of the following. In each case explain your thinking. a. Cos^-1 (cos(-pi/6))

Part I:
What is the value of cos(-pi/6)

Part II:
to solve the problem cos^-1(cos)(-pi/6)) find the angle in the interval [0,pi] whose cosine

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?

Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.