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. 7 seconds
B. 16 seconds
C. 5 seconds
D. 4 seconds
Answer: D
Mathematics
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× 
× 
?
A. $1672.53 B. $307.33 C. $390.26 D. $585.39
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Use the given graph of the quadratic function f to write its formula as 
.
A. f(x) = -(x + 3)2 - 4 B. f(x) = -(x - 3)2 + 4 C. f(x) = -(x + 3)2 + 4 D. f(x) = (x + 3)2 + 4
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Find the perimeter of the figure.
A. 56 cm B. 94 cm C. 379 cm D. 75 cm
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Solve. Clear fractions first.x + 
+ 
x = 
+ 
x
A. 
B. 
C. 
D. 
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