Multiply and simplify.
? 
A. 
B. 2(p - q)
C. - 
D. 
Answer: D
Mathematics
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Solve the problem.In a chemistry class, 9 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. 4.5 L B. 3.5 L C. 9.0 L D. 5.5 L
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 
A. f-1(x) = 4x
B. f-1(x) = 
C. f-1(x) = -4x
D. f-1(x) = 
Mathematics
Simplify the exponential expression using the rules for exponents.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The distance that an object falls when it is dropped is directly proportional to the square of the amount of time since it was dropped. An object falls 288 feet in 3 seconds. Find the distance the object falls in 5 seconds.
A. 160 ft B. 800 ft C. 480 ft D. 15 ft
Mathematics