Find an equation in slope-intercept form for the nonvertical lines. Write the vertical lines in the form x = h.Passing through (8, -3) and (0, 4)
A. y = 
x + 4
B. y = 
x + 4
C. y = - 
x + 4
D. y = - 
x + 4
Answer: D
Mathematics
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Use Gaussian elimination to solve the linear system by finding an equivalent system in triangular form.
A. (0, 5, 0) B. no solution C. (0, 5, -5) D. (0, 0, 5)
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The pH of a solution is given by the formula 
, where 
is the concentration of hydrogen ions in moles per liter in the solution. Use this formula to solve the problem.Find the pH value of a sample of lake for which [H+] = 0.00000000305. Round to the nearest tenth.
A. 8.5 B. 10.1 C. 7.3 D. 6.4
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Simplify the factorial expression.
A. n + 6! B. (n + 5)! C. 1 D. 6!
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