Express the statement as an algebraic expression.The sum of twice a number and 8
A. 16 + x
B. 2 + x + 8
C. 2x + 8
D. 2(x + 8)
Answer: C
Mathematics
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Solve the problem.If a rocket is propelled upward from ground level, its height in meters after t seconds is given by 
During what interval of time will the rocket be higher than 411.6 m?
A. 12 < t < 13 B. 7 < t < 12 C. 6 < t < 7 D. 0 < t < 6
Mathematics
Graph the ellipse.25(x - 2)2 + 4(y + 2)2 = 100
A. 
B. 
C. 
D. 
Mathematics
The table shown was generated by a graphics calculator. The expression y1 represents f(x).
Write the function in the form y = mx + b.
A. y = 2x + 3 B. y = -2x + 3 C. y = -2x - 3 D. y = 2x - 3
Mathematics
Factor the trinomial completely.p2 - 9pq + 81q2
A. (p - 9q)2 B. (p + 9q)(p - 9q) C. (p + 9q)2 D. prime
Mathematics