Evaluate the limit.
Mathematics
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Find the relative extrema of the function and classify each as a maximum or minimum.f(x) = x2 + 3x - 8
A. Relative minimum: 
B. Relative maximum: 
C. Relative maximum: 
D. Relative minimum: 
Mathematics
Find the unknown number in the proportion. Write your answer as a whole number or a mixed number if possible.
= 
A. x = 
B. x = 
C. x = 
D. x = 
Mathematics
Evaluate the exponential expression. Write the answer as an improper fraction where appropriate.
2
A. 
B. - 
C. - 
D. 
Mathematics
Solve the problem.In chemistry, the pH of a substance can be determined using the formula pH = -log [H+], where [H+] represents the hydrogen ion concentration. Determine the pH of the solution which has a hydrogen concentration of 4.1 × 10-11. Round to the nearest tenth.
A. 10.4 B. 10.7 C. 11.6 D. -11.6
Mathematics