Use interval notation to represent all values of x satisfying the given conditions.y1 = 
, y2 = 2 + 
, and y1 ? y2.
A. (-?, 9]
B. [9, ?)
C. (9, ?)
D. [-9, ?)
Answer: B
Mathematics
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Simplify the rational expressions.
A. 1
B. 3
C. 
D. 
Mathematics
Write the number in fixed-point notation.
?
?
A. 804,000 B. 8,040,000 C. 80,400 D. 80,400,000 E. 8,040,000,000
Mathematics
Solve the problem. Round to the nearest tenth, if necessary.If an object is propelled upward from ground level with an initial velocity of 71.6 feet per second, its height h in feet t seconds later is given by the equation 
After how many seconds does the object hit the ground?
A. 9.0 B. .2 C. 2.2 D. 4.5
Mathematics
Find the first term and the common ratio of the geometric sequence.75, 30, 12, 4.8, 1.92, . . .
A. a1 = 0.4, r = 2.5 B. a1 = 0.4, r = -0.4 C. a1 = 75, r = 1.92 D. a1 = 75, r = 0.4
Mathematics