Gastric juice has a hydrogen ion concentration of 0.13 mol/L. What is the pH of gastric juice?
A. 0.89
B. 0.13
C. 1.35
D. 4.69 × 10-14
Answer: A
Mathematics
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Solve the problem.A game involves choosing 6 different numbers from the numbers 1 through 13.In how many ways can this be done?
A. 1724 B. 1,235,520 C. 1696 D. 1716
Mathematics
Provide an appropriate response.The matrix for a strictly determined matrix game is given below. Determine if the game is fair or not fair.
A. Fair B. Not fair
Mathematics
Solve.4 ? 2t - 2 or 12 ? 2t - 2
A. [3, 7] B. [-7, -3] C. (-?,?) D. (-?, 3] ? [7, ?)
Mathematics
Estimate the value as a whole number or as a mixed numeral where the fractional part is 
.83
? 28
A. 2,324
B. 2,314
C. 2,425
D. 2,425
Mathematics