Estimate the product by first rounding each value as indicated.139.947 × 15.4round each to the nearest ten

A. 2085
B. 150
C. 2800
D. 2090


Answer: C

Mathematics

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Find the derivative of y.y = csch 

A. -csch  coth 
B. csch  coth 
C.  csch  coth 
D. -  csch  coth 

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What is the sum of the first 100 consecutive odd numbers?

Fill in the blank(s) with the appropriate word(s).

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Find the second-order partial derivative.Find fxx when f(x, y) = 8xexy.

A. 8(xexy + x2yexy) B. 8xy2exy + 16yexy C. 8(xy2exy + yexy + exy) D. 8x2y2exy

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Determine the x-values at which the graphs of f and g cross. If no such x-values exist, then state that fact.f(x) = x2 + 2x - 3, g(x) = 2x + 1

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Mathematics