Solve the compound inequality and write the solution set using set-builder notation. Graph the solution set using a number line.x < 3 and x ? -1
A. {x
? -1} 
B. {x
? -1} 
C. {x
< 3}
D. {x
< 3} 
Answer: A
Mathematics
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Factor completely. If unfactorable, indicate that the polynomial is prime.4x2 - 12x - 72
A. (-72x - 24)(x + 3) B. 4(x + 6)(x - 3) C. 4(x - 6)(x + 3) D. (x - 6)(4x + 12)
Mathematics
Solve the system by elimination. x + 5y = 28 3x + 4y = 18
A. {(-2, 6)} B. ? C. {(2, 7)} D. {(-3, 7)}
Mathematics
A die is rolled five times and the number of fours that come up is tallied. Find the probability of getting the given result.Exactly three fours
A. 0.032 B. 0.402 C. 0.161 D. 0.003
Mathematics
Solve the system of equations by the elimination method. Check your solutions. For any dependent equations, write your answer in ordered pair form.
A. {(-7, 0), (-7, 7)} B. {(7, 7), (-7, 7)} C. {(7, 0), (7, 7)} D. {(7, 0), (-7, 0)}
Mathematics