Simplify the expression by combining like terms.9x + 5 - 2x + 9
A. 7x + 14
B. 11x + 14
C. 21x
D. 21
Answer: A
Mathematics
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If a single cell divides into two cells every 60 minutes, how many cells will there be at the end of ten hours? ? Please enter your answer as a number without the units.
Fill in the blank(s) with the appropriate word(s).
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Find all solutions of the equation in the interval [0, 2?).
csc
- 2 = 0
A. 
B. 
C. 
D. 
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Simplify.
A. 7
B. 
C. 
D. 
Mathematics
Use a calculator to find the function value to four decimal places.cos (-474°)
A. 0.1045 B. -0.9135 C. -0.8090 D. -0.4067
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