Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination. x - y + 2z = -73x + z = -3 x + 3y + z = 0
A. (-3, 0, 1)
B. (-3, 1, 0)
C. (0, 1, -3)
D. No solution
Answer: C
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Solve the formula for the specified variable.A = P + Pr; for P
A. P = 
B. P = A - Pr
C. P = A - r - 1
D. P = 
Determine whether the slope of the line is positive, negative, zero, or undefined.
A. positive B. zero C. undefined D. negative
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) = -8x + 3
A. 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 B. f(x): D = {x|x > -8}, R is all real numbers; f-1(x): D = {x|x < -8}, R is all real numbers C. f(x): D = {x|x > -8}, R = {y|y > 3}; f-1(x): D = {x|x < -8}, R = {y|y < 3} D. f(x): D is all real numbers, R = {y|y > 3}; f-1(x): D is all real numbers, R = {y|y < 3}
A fried chicken franchise finds that the demand equation for its new roast chicken product, "Roasted Rooster", is given by
?
?
where p is the price (in dollars) per quarter-chicken serving and q is the number of quarter-chicken servings that can be sold per hour at this price. Express q as a function of p, and find the elasticity of demand when the price is set at $5 per serving.
?
A. 
B. 
C. ?36
D. 
E. 