Solve the problem.A certain object, after being heated, cools at such a rate that its temperature 
decreases 
each minute. If the object is originally heated to 100°C , find 
where t is the time in minutes.
A. 0.0°C
B. 60.2°C
C. 0°C
D. 100.0°C
Answer: B
Mathematics
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Multiply. Write the answer in lowest terms.
? 
? 
A. 
B. 
C. 
D. 
Mathematics
Find the slope of the line through the points and interpret the slope. 
A. - 
; for every 5-unit increase in x, y will decrease by 1 unit
B. 
; for every 5-unit increase in x, y will increase by 1 unit
C. -5; for every 1-unit increase in x, y will decrease by 5 units
D. 5; for every 1-unit increase in x, y will increase by 5 units
Mathematics
Solve the system by graphing. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(1, -4)} B. {(4, -1)} C. {(-1, 4)} D. no solution; ?
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics