Solve.42 is what percent of 21?
A. 100%
B. 150%
C. 200%
D. 50%
Answer: C
Mathematics
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The graph of an exponential function is given. Match the graph to one of the following functions. 
A. f(x) = 3x - 1 B. f(x) = 3x C. f(x) = 3x - 1 D. f(x) = 3x + 1
Mathematics
A parcel of land is circular, as shown, with a road running along the straight side. According to the surveyor, the distance from A to B is 8 miles and from P to Q is 16 miles, where PQ ? AB and Q is the midpoint of AB. What is the radius of the circle? How many square miles are in this parcel of land?
Mathematics
Use a 3D grapher to graph
Sketch the graph.
Mathematics
Solve the problem.Given cos 30° = 
, use trigonometric identities to find the exact value of sin 30°.
A. 2
B. 
C. 2
D. 
Mathematics