Solve the rational equation.2 + 
= 
A. {1}
B. {0, -1}
C. {-1, 1}
D. {-1}
Answer: D
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Solve the problem.The distance an object is from the ground after being tossed from a hot air balloon 770 feet in the air is a function of time and given by 
where h is height in feet and t is the number of seconds the object has been in the air. Find h(5.5) and explain its meaning.
A. 314.33 feet; After the object has been in the air 5.5 seconds, it is 314.33 feet above the ground. B. 712.80 feet; After the object has been in the air 712.80 seconds, it is 5.5 feet above the ground. C. 251.63 feet; After the object has been in the air 5.5 seconds, it is 251.63 feet above the ground. D. 712.80 feet; After the object has been in the air 5.5 seconds, it is 314.33 feet above the ground.
Solve and graph. Write the answer in set-builder notation.-7 ? 
A. {x |x ? -35}
B. {x |x > -35}
C. {x |x ? -35}
D. {x |x < -35}
Graph the inequality on a number line.[3, 6]
A. 
B. 
C. 
D. 
Use the initial condition to find the particular solution of the differential equation.
?
, 
when 
A. 
B. 
C. 
D. 
E. 