Solve the problem.A rock falls from a tower that is 107.8 m high. As it is falling, its height is given by the formula 
How many seconds will it take for the rock to hit the ground (h=0)?
A. 2400 s
B. 10.1 s
C. 4.7 s
D. 10.4 s
Answer: C
Mathematics
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Determine what the next equation would be, and verify that it is indeed a true statement.9 × 9 = 8199 × 99 = 9801999 × 999 = 998,001
A. 999 × 9999 = 99,980,001 B. 9999 × 9999 = 999,001 C. 9999 × 9999 = 99,980,001 D. 9999 × 9999 = 1,000,001
Mathematics
Match the equation to the graph.
- 
= 1
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
= 9
A. {9}
B. {81}
C. 
D. 
Mathematics
Simplify.
A. 
B. 2
C. 
D. 
Mathematics