Solve the problem.In order for a chemical reaction to take place, the Fahrenheit temperature of the reagents must be at least 
. Find the Celsius temperatures at which the reaction may occur. 
A. C < 244.71?
B. C ? 47.88?
C. C ? 47.88?
D. C ? 244.71?
Answer: C
Mathematics
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The pOH of a solution is 9.6. What is the pH of the solution?
A. 0.98 B. 4.4 C. 9.6 D. 5.6
Mathematics
Solve the equation. Express radicals in simplest form.x2 = 49
A. 24.5 B. ±8 C. 7 D. ±7
Mathematics
Simplify the expression. Use absolute value if necessary.(x14y7)1/7
A. x2y
B. x2
C. x2
D. x14y
Mathematics
Solve the problem.In Country X, the average hourly wage in dollars from 1960 to 2010 can be modeled by f(x) = 
Use f to estimate the average hourly wages in 1965, 1985, and 2005.
A. $0.77, $2.27, $6.67 B. $0.77, $3.05, $6.67 C. $3.43, $0.39, $6.67
Mathematics