Estimate the x-intercept from the graph below and solve for solutions of the polynomial equation when 
.
A. 
when x is equal to 
B. 
when x is equal to 
C. 
when x is equal to 
D. 
when x is equal to 
E. 
when x is equal to 
Answer: A
Mathematics
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Find the exact value of the expression, if possible. Do not use a calculator.tan-1 
A. - 
B. - 
C. 
D. 
Mathematics
Solve the inequality, then graph the solution.
(x + 6) > 
(x + 6)
A. 
B. (0, ?)
C. 
D. (-?, 0)
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Multiply the polynomials using the FOIL method. Express the answer as a single polynomial in standard form.(3x + 10y)(-3x + 7y)
A. -9x2 - 30xy + 70y2 B. -9x2 - 9xy - 9y2 C. -9x2 + 21xy + 70y2 D. -9x2 - 9xy + 70y2
Mathematics
Use Gaussian elimination to solve the linear system by finding an equivalent system in triangular form.
A. (-4, 4, 0) B. (0, 4, -4) C. no solution D. (-4, 0, 4)
Mathematics