Select the correct graph for the following function using a graphing utility. Determine whether the limit exists or not.
?
, 
?
A. ?
=4
B. ?
does not exist
C. ?
does not exist
?
D. ?
=0
?
E. ?
=6
Answer: B
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Evaluate the function.If p(x) = 3x2 + 2x + 3, find p
.
A. 
B. -a4 - 2a2 + 1
C. a4 - 
+ 3
D. 
- 
+ 3
Simplify.
+ 
A. 
B. 
C. 
D. 
Add.684.45 + 7.02
A. 691.36 B. 691.46 C. 691.47 D. 691.37
Use the pH scale to solve the problem. Negative ions, designated by the notation [OH-] are always present in any acid or base. The concentration, [OH-], of these ions is related to [H+] by the equation [OH-] ? [H+] = 10-14 moles per liter. Find the concentrations of [OH-] and [H+] in moles per liter for the substance with the following pH value. Round to two decimal places. pH = 12.2
A. [H+] = 6.31 × 10-13 [OH-] = 1.58 × 10-2 B. [H+] = 1.58 × 10-13 [OH-] = 6.31 × 10-3 C. [H+] = 6.31 × 10-11 [OH-] = 1.58 × 10-3 D. [H+] = 1.58 × 10-2 [OH-] = 6.31 × 10-13