Solve.A number subtracted from 11 amounts to the quotient of -40 and -4. Find the number.

A. 21
B. 0
C. 1
D. -149


Answer: C

Mathematics

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Find the surface area of the surface S.S is the upper cap cut from the sphere x2 + y2 + z2 = 169 by the cylinder .

A. 26? B. 13 C. 650? D. -26?

Mathematics

Factor.x2 + x - 20

A. (x - 4)(x + 5) B. (x - 5)(x + 4) C. prime D. (x + 1)(x - 20)

Mathematics

Determine i) the domain of the function, ii) the range of the function, iii) the domain of the inverse, and iv) the range of the inverse.f(x) = 

A. f(x): D is all real numbers, R = ;
f-1(x): D = , R is all real numbers
B. f(x): D = , R = ;
f-1(x): D = , R = 
C. f(x): D = {x|x ? 2}, R = {y ? 0};
f-1(x): D = {x|x ? 0}, R = {y|y ? 2}
D. f(x): D is all real numbers, R is all real numbers;
f-1(x): D is all real numbers, R is all real numbers

Mathematics

If a firm discovers that the days sales outstanding (DSO) of its credit customers is increasing, management should consider tightening the firm's credit policy.

Answer the following statement true (T) or false (F)

Mathematics