Evaluate. If necessary, find common denominators and simplify completely.18
+ 12
A. 29
B. 18
C. 30
D. 31
Answer: C
Mathematics
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Graph the step function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Round to the indicated place.47,158 to the nearest thousand
A. 47,000 B. 48,000 C. 47,100 D. 57,000
Mathematics
Solve the problem.In a chemistry class, 7 liters of a 4% silver iodide solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed?
A. 7.0 L B. 3.5 L C. 4.5 L D. 2.5 L
Mathematics
Find an equation of the inverse relation.y = 5x2 - 5x + 7
A. x = 5y2 + 5y - 7 B. x = 5y2 - 5y + 7 C. y = 5x2 + 5x - 7 D. x = 5y2 - 5x + 7
Mathematics