The Path of a Projectile Is Modeled by the Parametric $x = \left( 85 \cos 60 ^ { \circ } \right) t \text { and }$

question 103

Multiple Choice

The path of a projectile is modeled by the parametric equations $x = \left( 85 \cos 60 ^ { \circ } \right) t \text { and }$ $y = \left( 85 \sin 60 ^ { \circ } \right) t - 16 t ^ { 2 }$ where $x$ and $y$ are measured in feet. Use a graphing utility to approximate the range of the projectile. Round your answer to two decimal places.

• A) \(312.85 \mathrm { ft }\)
• B) \(521.42 \mathrm { ft }\)
• C) \(131.09 \mathrm { ft }\)
• D) \(391.06 \mathrm { ft }\)
• E) \(195.53 \mathrm { ft }\)

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Definitions:

24 to 28 Months Old

A developmental age range in toddlers marked by significant growth in motor skills, language acquisition, and independence.

9 to10 Months Old

A developmental age range in infants characterized by major milestones such as improved mobility, babbling, beginning of object permanence understanding, and anxiety around strangers.

4 to 6 Months Old

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Phonemes

The basic units of sound in a language that distinguish one word from another, for example, the difference between the sounds of "p" and "b."