Find the exact value for x in the interval 
that satisfies the equation. cos (x) = 
A. 
B. - 
C. - 
D. 
Answer: A
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The lengths of the sides of a triangle are given. Determine if the triangle is a right triangle. If it is, identify the hypotenuse.28, 96, 100
A. right triangle; 28 B. not a right triangle C. right triangle; 96 D. right triangle; 100
Referring to triangle ABC, find the area of the triangle.
?
?
Round to three significant digits.
?
A. 12.9 ft2 B. 13.1 ft2 C. 12.5 ft2 D. 12.3 ft2 E. 11.9 ft2
Use a grapher to graph the function.A circular hoop has a point marked on the rim. It rolls on a stretch of level ground beginning with the marked point on the ground. The parametric equations for the path of a point on the rim of the hoop are 
and 
. Graph the function for 
.
A. 
B. 
C. 
D. 
Use the graph to find a ? > 0 such that for all x, 0 < 
< ? ? 
< ?.
A. 0.04 B. 0.02 C. -0.4 D. 0.3