Solve the problem.To convert a Fahrenheit temperature to Celsius, one formula to use is 
where F is the Fahrenheit temperature (in degrees) and C is the Celsius temperature. What is the Celsius temperature (to the nearest degree) when Fahrenheit temperature is 50°?
A. 96°
B. 10°
C. 24°
D. 122°
Answer: B
Mathematics
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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 = 7 x - y + 2z = 7
A. (8, -3, 2)
B. (-3z + 14, 2z - 7, z)
C. 
D. (4, 1, 2)
Mathematics
Graph the equation.y = -2x2
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The mathematical model 
represents the cost in dollars a company has in manufacturing x items during a month. Based on this, how much does it cost to produce 
?
A. $120,000 B. $0.50 C. $180,000 D. $150.00
Mathematics
Find the product and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics