Solve the problem.Find the hydrogen ion concentration of a solution whose pH is 6.5. Use the formula 
A. 3.16 × 10-7
B. 3.16 × 106
C. -0.8129134
D. 0.81291336
Answer: A
Mathematics
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Use a calculator to evaluate the expression. Round the answer to three decimal places.-(4.58)-1
A. 0.218 B. -0.218 C. 4.580 D. -4.580
Mathematics
Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.6x2 - 5xt - 6t2
A. (2x + 3t)(3x - 2t) B. prime C. (2x - 3t)(3x + 2t) D. (6x - 3t)(x + 2t)
Mathematics
Perform the indicated operations and simplify the result. Leave the numerator and denominator in your answer in factored form.
A. 
B. 
C. 
D. 
Mathematics
Use the square root property to solve the quadratic equation.7x2 - 35 = 0
A. ± 
B. ± 
C. 
D. ± 
Mathematics