Provide an appropriate response.4 × 10-3 = .

A. 0.004
B. 400
C. 0.0004
D. 4000


Answer: A

Mathematics

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Solve the problem.A child on a swing initially swings through an arc length of 12 meters. The child stops pushing and sits patiently waiting for the swing to stop moving. If friction slows the swing so the length of each arc is 80% of the length of the previous arc, how far will the child have traveled before the swing stops?

A. 24 m B. 25 m C. 60 m D. The child will travel an infinite distance.

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Find the magnitude of u × v and the unit vector parallel to u × v in the direction of u × v.u = 3i + 7i - 2k, v = 0

A. 0; 3i + 7i - 2k
B. 0; no direction
C. 0; (3i + 7i - 2k)
D. (3i + 7i - 2k)

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Find an equation of a line satisfying the following conditions.Perpendicular to x = 2, passing through (1, 3)

A. x = 3 B. y = 1 C. x = 1 D. y = 3

Mathematics

Use the fundamental identities to find the value of the trigonometric function.Find cot ? if sec ? = -  and ? is in quadrant II.

A.
B.
C. - 
D. - 

Mathematics