Find the reciprocal.

A. 0
B. 1
C. 7
D.

Answer: C

Mathematics

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Show that the function is a solution of the wave equation.w(x, t) = sin (-9x - 9ct)

A. No B. Yes

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Solve.A computer printer costs $720. If the sales tax rate is 3%, how much tax is charged and what is the total price? Round your answers to the nearest cent.

A. $252.00, $972.00 B. $25.20, $745.20 C. $18.00, $738.00 D. $32.40, $752.40

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Expand.( + m)4

A. 4 + 8m + 12m² + 4m³ + m⁴
B. 4 + 8m + 12m² + 4m³ + m⁴
C. 4 + 8m + 6m² + 4m³ + m⁴
D. 4 + 4m + 12m² + 4m³ + m⁴

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Solve.A ball is dropped from a height of 4 m. On each upward bounce the ball returns to of its previous height. Find the total distance the ball travels in an upward direction before coming to rest.

A. 3 m B. 12 m C. 28 m D. 15 m

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Mathematics