Find the approximate value of the expression, rounded to four decimal places.cos 65.1°

A. 2.1543
B. 0.9070
C. 0.4210
D. -0.6422

Answer: C

Mathematics

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Determine the indefinite integral. Check your work by differentiation.dy

A. y3/2  - 12 + C
B. y3/2 +  + C
C.  - +C
D. y3/2 + 12 + C

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Mathematics

Divide and then interpret the remainder.An acre is 43,560 sq. ft. How many acres is 100,000 sq. ft.?

A. 3 acres with 30,680 sq. ft. left over B. 2 acres with 29,568 sq. ft. left over C. 3 acres with 32,595 sq. ft. left over D. 2 acres with 12,880 sq. ft. left over

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Mathematics

Determine if the given ordered triple is a solution of the system.(5, 4, -3)x - y + z = 12x + y + z = 6x + y - z = -4

A. solution B. not a solution

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Mathematics

Solve the problem.The half-life of plutonium-234 is 9 hours. If 30 milligrams is present now, how much will be present in 3 days? (Round your answer to three decimal places.)

A. 23.811 B. 0.117 C. 2.976 D. 17.23

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Mathematics