Solve the problem.Five more than a number is equal to the difference of forty-one and the number. Find the number.

A. 36
B. 18
C. 15
D. 23

Answer: B

Mathematics

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Find the unit tangent vector T and the principal unit normal vector N. r(t) = i  + j + 3tk

A. T = (cos 0.8t)i  - (sin 0.8t)j ; N = (-sin 0.8t)i - (cos 0.8t)j 
B. T = (cos 0.8t)i  - (sin 0.8t)j + k ; N = (-sin 0.8t)i - (cos 0.8t)j
C. T = (sin 0.8t)i  - (cos 0.8t)j ; N = (-sin 0.8t)i - (cos 0.8t)j
D. T = (cos 0.8t)i  - (sin 0.8t)j + k ; N = (-sin 0.8t)i - (cos 0.8t)j 

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Mathematics

Translate the question into an equation. Do not solve.92% of what number is 52?

A. 92 ? x = 52 B. 92 ? 52 = x C. 92% ? x = 52 D. 92% = 52 ? x

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Mathematics

Simplify the expression.2434/5

A. 2,187 B. 19,683 C. 6,561 D. 81

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Mathematics

Round the number to the place indicated.Round to the nearest hundredth: 19.87543

A. 19.89 B. 19.88 C. 19.8754 D. 19.875

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Mathematics