Solve by completing the square:X^2+6x-12=0

IS this true or false? All rhombuses are squares?

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Josephina likes the service she receives at her favorite cafe and wabts to leave a 20% tip. Her bill is $22.58. what tip should she leave.

Each of the following passages contains a single argument. Using the letters "P" and "C," identify the premises and conclusion of each argument, writing premises first and conclusion last.

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5. Write in slope intercept form 5x - 3y = - 9 y = (5/3) x - 3 y = (5/3) X + 9 y = (5/3) x + 3 y = (3/5) x + 3

Ian has a list of 3 visit on a road trip with some friends. He needs to finalize the plans for the trip. How many different orders can he plan to visit the cities

From a group of 8 people, including George and Nina, 3 people are to be selected at random to work on a certain project. What is the probability that the 3 people selected will include George but not Nina? A) 5/56 B) 9/56 C) 15/56 D) 21/56 E) 25/56

5 (2x+6) - 17+0+0+0+0+0+0+0

What type of number is 3 - 771? Complex number Question in Khan Academy