Solve the problem.A bullet is fired with a muzzle velocity of 1455 ft/sec from a gun aimed at an angle of 27° above the horizontal. Find the horizontal component of the velocity.

A. -425.1 ft/sec
B. 660.6 ft/sec
C. 1296 ft/sec
D. 741.4 ft/sec

Answer: C

Mathematics

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Solve the problem.Find the mass of a wire of density ?(x, y, z) = 4z and has the shape of the helix  y = 3 sin t, z = 4t

A. 40?2
B. 80?2
C. 8?2
D. ?2

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Mathematics

Answer the question.A marathoner ran the 26.2 mile New York City Marathon in 2.2 hrs. Did the runner ever exceed a speed of 9 miles per hour?

What will be an ideal response?

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Mathematics

Evaluate the expression.3

A.
B. 3 
C.  
D.  

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Mathematics

The gross domestic product (GDP) of a certain country is projected to be ? ? billion dollars t yr from now. What will be the rate of change of the country's GDP 3 yr from now? ?

A. $10 billion/yr B. $13 billion/yr C. $15 billion/yr D. $11 billion/yr

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Mathematics