Solve the inequality. Graph the solution set and write it in interval notation.3(4x - 3) + 27 ? 5x - 3
A. [3, ?)
B. (-?, -3] 
C. (-?, 3]
D. [-3, ?)
Answer: B
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Solve the system graphically. If the system has an infinite number of solutions, use set-builder notation to write the solution set. If the system has no solution, state this. 4x + y = -22 x + 6y = 6
A. (-6, -7) B. (-6, 2) C. (-5, -2) D. (6, 2)
In 1742 the mathematician Christian Goldbach observed that every even number (except 2) seemed representable as the sum of two primes. Goldbach could not prove this result, known today as Goldbach's conjecture, so he wrote to his friend, the world-famous mathematician Leonhard Euler. Euler was unable to prove or disprove this conjecture, and it remains unsolved to this day. Write the numbers 4, 6, 8 as the sum of two primes.
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?
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What will be an ideal response?
Find the range of the quadratic function in interval notation.f(x) = 2x2 - 2x - 8
A. (-?, 
B. 
, ?)
C. (-?, 
D. 
, ?)
Solve the given system by Gaussian elimination.
a. x = 5, y = –1, z = –6
b. x = –5, y = –1, z = –6
c. x = –5, y = 1, z = –6
d. x = 1, y = 5, z = 6