Write in words, as on a check.$0.57
A. Fifty-seven and 
dollars
B. Zero and 
dollars
C. Five hundred fifty and 
dollars
D. Zero and 
dollars
Answer: D
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Solve the problem.A team of engineers is testing an experimental high-voltage fuel cell with a potential application as an emergency back-up power supply in cell phone transmission towers. Unfortunately, the voltage of the prototype cell drops with time according to the equation 
where V is in volts and t is the time of operation in hours. The cell provides useful power as long as the voltage remains above 5.1 volts. Use Newton's method to find the useful working time of the cell to the nearest tenth of an hour (that is, solve V(t) = 5.1 volts). Use t = 7 hours as your initial guess and show all your work.
What will be an ideal response?
Solve the problem.Find the expected number of boys in a family of 4 children.
A. 2.75 B. 2.5 C. 2 D. 3
Determine whether the given relationship defines a function. If so, identify the independent and dependent variable, and why the relationship is a function.The temperature t on a backyard thermometer on a given day x.
A. Yes; x, t; there is one temperature t on any given day x. B. No
Use an inequality symbol to write the given statement symbolically.
is greater than or equal to 
.
A. 
? 
B. 
> 
C. 
= 
D. 
? 