Find the term that should be added to the expression to form a perfect square trinomial. Write the resulting perfect square trinomial in factored form.x2 + 7x
A. 
; 
2
B. 0; 
2
C. 
; 
2
D. 0; 
2
Answer: C
Mathematics
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Solve the problem.The gravitational force (in lb) of attraction between two objects is given by 
where x is the distance between the objects. If the objects are 15 ft apart, find the work required to separate them until they are 50 ft apart. Express the result in terms of k.
A. 
k
B. 
k
C. 
k
D. 
k
Mathematics
Evaluate the expression.
3
A. - 
B. - 
C. 
D. 
Mathematics
Find the domain of the function.f(x) = 
+ 
A. (-?, -6) or (-6, 3) or (3, ?) B. (-?, ?) C. (-?, -6) or (3, ?) D. (-?, -3) or (-3, 6) or (6, ?)
Mathematics
Determine whether the function is one-to-one.The function that pairs the temperature at 3:00 pm in your city in degrees Fahrenheit with the temperature in degrees Celsius.
A. Yes B. No
Mathematics