The measures of two angles of ABC (shown in the illustration) are given. Find the measure of the third angle, if
?
and 
.
?
?
A. 
B. 
C. 
D. 
E. none of these
Answer: A
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Provide an appropriate response.Convert 1.25 rad to degrees, minutes and seconds rounded to the nearest second.
A. 71°37'11" B. 1°25' C. 71°6'20" D. 225°
Solve the problem.In a distant solar system the diameter of planet A is 7 times as great as the diameter of planet B. The diameter of planet B is 707 miles. Find the diameter of planet A.
A. 4849 mi B. 4942 mi C. 4939 mi D. 4949 mi
Solve the problem.What polynomial expression represents, in appropriate units, the perimeter of this square? The area? 
A. Perimeter: 16t + 12; Area: 16t2 + 24t + 9 B. Perimeter: 16t + 3; Area: 8t2 + 24t + 6 C. Perimeter: 16t + 3; Area: 16t2 + 12t + 9 D. Perimeter: 16t + 12; Area: 16t2 + 9
Solve the linear system using an inverse matrix. x + 2y + 3z = 1 x + y + z = -42x + 2y + z = -6
A. (4, 8, -6) B. (-5, 12, -1) C. (-21, -31, -14) D. (-11, 9, -2)