Provide an appropriate response.Choose the equivalent form of the given formula for lateral area of a cylinder.A = 2?rh.

A. r = 
B. h = 
C. h = 
D. r = 


Answer: A

Mathematics

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Provide an appropriate response.Solve, checking for extraneous roots:  ?  = 1

A. x = 12
B. all real numbers
C. no solution
D. x = 

Mathematics

Find the sum of the terms of the infinite geometric sequence.4, - 1, , . . .

A. - 1
B. 3
C. 4
D.

Mathematics

Solve the problem.The table shows the number of dollars spent in Country X (in millions) on environmental protection programs during the years  through . Use least-squares regression to find the polynomial function that best models these data. Round coefficients to three decimal places. 

A. f(x) ? -0.010x2 + 0.346x + 5.253 B. f(x) ? 0.007x3 - 0.105x2 + 0.805x + 4.397 C. f(x) ? 0.005x3 - 0.102x2 + 0.805x + 4.697 D. f(x) ? -0.010x2 + 0.446x + 5.759

Mathematics

Find the indicated term using the given information.a = -7, d = 1; a17

A. -23 B. 9 C. 10 D. -24

Mathematics