Rotate the axes so that the new equation contains no xy-term. Graph the new equation.17x2 - 12xy + 8y2 - 68x + 24y -12 = 0
A. 
B. 
Answer: A
Mathematics
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Solve the problem.A chemist makes a mixture of concentrated hydrochloric acid and distilled water so that the ratio of acid to water is 8 to 4. If he starts with 32 liters of acid, how much water is mixed with the acid?
A. 64 liters B. 47 liters C. 16 liters D. 31 liters
Mathematics
Factor the expression completely, if possible.1 + 125y3
A. (1 + 5y)(1 - 5y + 25y2) B. (1 - 5y)(1 + 5y + 25y2) C. (1 + 5y)(1 + 25y2) D. Does not factor
Mathematics
Evaluate.(-3)0- 30
A. 0 B. 3 C. -1 D. 1
Mathematics
Add the integers.-10 + (-20)
A. -10 B. 10 C. -30 D. 30
Mathematics