Solve the equation by the method of your choice. Simplify irrational solutions, if possible.8x2 + 30x + 14 = -11
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the problem.Find the least squares line through the points 
and 
A. y = -27x + 68 B. y = 15x + 84 C. y = -27x + 84 D. y = 15x + 68
Mathematics
Express the number in scientific notation.0.0000004
A. 4 × 10-6 B. 4 × 10-8 C. 4 × 10-7 D. 4 × 10-9
Mathematics
Solve the problem.The half-life of silicon-32 is 710 years. If 30 grams is present now, how much will be present in 300 years? (Round your answer to three decimal places.)
A. 22.383 B. 1.604 C. 29.134 D. 0
Mathematics
Determine the real solutions to the system of nonlinear equations.x2 + y2 = 85x2 - y2 = -77
A. (2, 9), (-2, 9), (2, -9), (-2, -9) B. (2, 9), (9, 2), (-2, -9), (-9, -2) C. (-2, -9), (-9, -2) D. (2, -9), (2, 9)
Mathematics