Write the equation of a sine function that has the given characteristics.The graph of y = 
, shifted 9 units to the left
A. y = 
+ 9
B. y = 
- 9
C. y = 
D. y = 
Answer: C
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A solution is an acid if its pH is less than 7 and a base if its pH is greater than 7. The pH is defined by 
where [H+] is the concentration of hydrogen ions in the solution. Use this information to answer the question.A mixture has a pH of 9.8. Find the concentration of hydrogen ions [H+] in the mixture. Is the mixture an acid or a base?
A. 109.8, acid B. 10-9.8, base C. 109.8, base D. 10-9.8, acid
Select the graph of the given function and determine the interval(s) for which f(x) ? 0. ? f(x) = 16 - x2 ?
A. ?
?
[-4, -4]
B. ?
?
[-4, 4]
C. ?
?
[-4, -4]
D. ?
?
[4, -4]
E. ?
?
[-4, 4]
Solve.If the force acting on an object stays the same, then the acceleration of the object is inversely proportional to its mass. If an object with a mass of 42 kilograms accelerates at a rate of 
per second per second by a force, find the rate of acceleration of an object with a mass of 
that is pulled by the same force.
A. 
meters per second per second
B. 42 meters per second per second
C. 35 meters per second per second
D. 36 meters per second per second
Find the square root.
A. 1
B. 
C. 6
D. 3