Use a tree diagram showing all possible results when four fair coins are tossed. Then list the ways of getting the indicated result.exactly two tails
A. hhtt, htht, htth, thht, thth, tthh, ttht
B. hhtt, htht, htth, thht, thth, tthh
C. hhtt, htht, htth, thth, tthh
D. tthh
Answer: B
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A cone sliced by a plane results in a type of curve called a conic section. Use the given information and figure to identify the conic section produced in the plane. The plane is oblique to the axis of the cone. 
A. parabola B. ellipse C. hyperbola D. circle
Match the given function to its graph.1) y = 2 + sin x2) y = 2 + cos x3) y = -2 + sin x4) y = -2 + cos xA B
CD
A. 1B, 2D, 3C, 4A B. 1A, 2C, 3D, 4B C. 1A, 2D, 3C, 4B D. 1A, 2B, 3C, 4D
Solve the equation by factoring.(x + 5)(x + 1) = 21
A. {-2, 8} B. {-5, -1} C. {-8, 2} D. {1, 5}
Evaluate the expression according to the order of operations.5 ? 
+ 6 ? 
A. 344 B. 46 C. 10 D. 52