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Algebra
Question

6. Technology required. Two rocks are launched str...

6. Technology required. Two rocks are launched straight up in the air. The height of Rock A is given by the function \( f \) , where \( f ( t ) = 4 + 30 t - 16 t ^ { 2 } \) . The height of Rock B is given by \( g \) , where \( g ( t ) = 5 + 20 t - 16 t ^ { 2 } \) . In both functions, \( t \) is time measured in seconds and height is measured in feet. a. Determine which rock hits the ground first: \( f ( t ) \underline { \) oR \( } g ( t ) \) . (Circle one.) b. Rock A, modeled by \( f ( t ) \) hits the ground at about __ seconds c. Rock B, modeled by \( g ( t ) \) hits the ground at about 

Answer

a) Rock B

b) 2 sec

c)1.464 sec

Solution
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