Solve.When an object is dropped to the ground from a height of h meters, the time it takes for the object to reach the ground is given by the equation t = 
, where t is measured in seconds. If an object falls 78.4 meters before it hits the ground, find the time it took for the object to fall.
A. 16 seconds
B. 7 seconds
C. 5 seconds
D. 4 seconds
Answer: D
Mathematics
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Rotate the axes to eliminate the xy-term in the equation below and then write the equation in standard form. xy + 10 = 0
a. 
b. 
c. 
d. 
e. 
Mathematics
Use the relation's graph to determine its domain and range.
- 
= 1 
A. Domain: (-?, -3] or [3, ?) Range: (-?, ?) B. Domain: (-?, ?) Range: (-?, -3) or (3, ?) C. Domain: (-?, ?) Range: (-?, ?) D. Domain: (-?, -3] and [3, ?) Range: (-?, ?)
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics
Graph the function using a window that gives a complete graph. Does the figure below show the complete graph?
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?
?
?
A. Yes B. No
Mathematics