Solve.Two angles of a triangle measure 20° and 20°. What is the measure of the third angle?
A. 140°
B. 40°
C. 50°
D. 320°
Answer: A
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Perform the indicated operations, expressing the answer in simplest form with rationalized denominators.
A. - 
B. - 
C. - 
D. 
Round the number as indicated.19,893,450 to the nearest million
A. 20,000,000 B. 19,893,000 C. 19,000,000 D. 19,900,000
The equation represents a conic section in polar form. Identify the conic section, the position of the directrix, and the distance between the focus and the directrix.r = 
A. ellipse, directrix parallel to the polar axis located 1 unit(s) below the pole B. ellipse, directrix perpendicular to the polar axis located 1 unit(s) right of the pole C. ellipse, directrix parallel to the polar axis located 1 unit(s) above the pole D. ellipse, directrix perpendicular to the polar axis located 1 unit(s) left of the pole
Solve.Find the simple interest when: Principal = $612, Rate = 19%, Time = 6 months.
A. $6,976.80 B. $116.28 C. $697.68 D. $58.14