Find the speed of a particle with the given position function.
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Mathematics
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Find the least common denominator.
and 
A. r(r + 3) B. (r + 3)2 C. r(r + 1)(r + 3) D. r(r + 3)2
Mathematics
Evaluate the given integral by using three terms of the appropriate series, rounding the result to four decimal places.
A. 0.1216 B. 0.5877 C. 0.5620 D. 0.1801
Mathematics
Find the slope of the line that passes through the given two points. If the slope is undefined, state this.(2, -5) and (2, 3)
A. 2 B. Undefined C. 4 D. 8
Mathematics
Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.z-2/5 ? z3/5
A. z1/5 B. z5/6 C. z6/5 D. z-1/5
Mathematics