Write as a number.Round 7620 to the first digit.
A. 8100
B. 7890
C. 9000
D. 8000
Answer: D
Mathematics
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Solve the problem by integration.The force F (in N) applied by a stamping machine in making a certain computer part is 
where x is the distance (in cm) through which the force acts. Find the work done by the force from 
to 
A. 0.1306 N? cm B. 0.0067 N? cm C. 0.0403 N? cm D. 13.3621 N? cm
Mathematics
Suppose a slot machine has three independent wheels as shown in the figure.
?
Find the probability P(3 bar). Give your answer to four decimal places, if required.
?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the equation.
x+1= 
x-1
A. 
B. 
C. 
D. 
Mathematics
Find the domain of the rational function.g(x) = 
A. all real numbers B. {x|x ? 0, x ? 25} C. {x|x ? -5, x ? 5} D. {x|x ? -5, x ? 5, x ? -6}
Mathematics