Find the area of a circle with radius 2.5 feet. Round to the nearest tenth of a foot.

What will be an ideal response?

142.9ft²

Mathematics

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Make the required change in the given equation.? = -2 cos ? sin ? to Cartesian coordinates

A. x2 + y2 + z2 + 2z = 0
B.  = -2y
C. x2 + y2 + z2 + 2x = 0
D.  = -2x

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Mathematics

Find the Taylor polynomial of order 3 based at a for the given function.e-7x; a = 0

A. 1 - 7x +  - 
B. 1 - 7x +  - 
C. 1 - 7x +  - 
D. 1 - 49x +  - 

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Mathematics

If A denotes the area of the sector of a circle of radius r formed by the central angle ?, find the missing quantity. If necessary, round the answer to two decimal places.r = 19 inches, ? = 90°, A = ?

A. 29.83 in2 B. 14.92 in2 C. 566.77 in2 D. 283.39 in2

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Mathematics

Give the equation of the horizontal asymptote, if any, of the function.f(x) = 

A. y = -1 B. y = 0 C. no horizontal asymptotes D. y = -16

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Mathematics