Solve for x.log39 = x

A. 27
B. 2
C. 3
D. 12


Answer: B

Mathematics

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Find the product.-5(71)(2)

A. -710 B. -213 C. -713 D. 132

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) = 4x + 6

A. f(x): D is all real numbers, R = ;
f-1(x): D is all real numbers, R = 
B. f(x): D = , R is all real numbers;
f-1(x): D = , R is all real numbers
C. f(x): D = , R = ;
f-1(x): D = , R = 
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

Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.2.0x + 14.0y + 4.7z = 2.55.3x - 7.0y - 0.4z = -2.74.5x + 15.9y - 3.2z = 8.5

A. (0.0, 0.6, -1.0) B. (0.0, 0.4, -0.7) C. (-0.1, 1.7, -2.7) D. (0.1, -1.0, 1.7)

Mathematics

Represent the linear system as an augmented matrix. 3x - 2z = 18  3y + 8z = 45-2x + 2y + 7z = 19

A.  
B.  
C.  
D.  

Mathematics