A formula is given along with the values of all but one of the variables in the formula. Find the value of the variable not given. Round to the nearest hundredth where necessary.I = prt; I = 31.5, p = 150, r = 0.03
A. 0.7
B. 141.75
C. 1.4175
D. 7
Answer: D
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Decide whether the statement is true or false.For every counting number x, x ? 1 or x = x2.
A. True B. False
Use the graph of the relation to identify the domain and range.y = x3 + 1
A. domain: (-?, ?) range: (-?, ?) B. domain: (-1, ?) range: (-?, ?) C. domain: (1, ?) range: (-?, ?) D. domain: (-?, ?) range: (1, ?)
Use Gauss-Jordan elimination to solve the linear system and determine whether the system has a unique solution, no solution, or infinitely many solutions. If the system has infinitely many solutions, describe the solution as an ordered triple involving variable z. x + y + z = 92x - 3y + 4z = 7
A. 
B. 
C. 
D. no solution
Find the solution set of the system by graphing the equations by hand. If the system is inconsistent or dependent, say so.
A. (1, 18) B. (-1, 9) C. (1, -9) D. (-1, -9)