Solve the problem.The pH of a solution ranges from 0 to 14. An acid has a pH less than 7. Pure water is neutral and has a pH of 7. The pH of a solution is given by 
where x represents the concentration of the hydrogen ions in the solution in moles per liter. Find the hydrogen ion concentration if the 
A. 105
B. 10-5
C. 0.2
D. 1.61
Answer: B
Mathematics
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Provide an appropriate response.The intensity of an earthquake is measured on the Richter scale by the formula Richter scale rating = log
, where I0 is the measure of the intensity of a very small earthquake. Find the Richter scale rating of an earthquake having intensity 20I0.
A. 20 B. 1.3010 C. 2 D. 2.9957
Mathematics
Write a slope-intercept equation for a line with the given characteristics.m = - 
, passes through (2, 5)
A. y = - 
x + 
B. y = - 
x - 
C. y = 
x - 
D. y = - 
x - 
Mathematics
Choose the ordered pair which is a solution of the inequality.x + y > 0(1, 0), (-1, 1), (0, 0), (1, -1)
A. (1, 0) B. (1, -1) C. (-1, 1) D. (0, 0)
Mathematics
Determine if the following is an identity.
+ 
= 2 csc x
A. Identity B. Not an identity
Mathematics