Solve the quadratic equation by completing the square.x2 + 12x = -21
A. {6 - 
, 6 + 
}
B. {6 + 
}
C. {-6 - 
, -6 + 
}
D. {-12 + 
}
Answer: C
Mathematics
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Factor completely.y3 - 8y2 - 4y + 32
A. (y + 2)(y - 2)(y - 8) B. (y2 + 4)(y + 8) C. (y + 2)(y + -8)(y + 8) D. (y - 2)(y - 2)(y - 8)
Mathematics
Find the area.
A. 45 ft2 B. 90 ft2 C. 36 ft2 D. 23 ft2
Mathematics
Simplify.
A. 
B. 18mp
C. 18m6p2
D. 
Mathematics
Solve the application by using multiplication or division.Jake has a cable that is 106.4 feet long. He wants to cut it into pieces that are 7.6 feet long. How many 7.6-foot pieces will he get from the cable?
A. 13 pieces B. 140 pieces C. 14 pieces D. 15 pieces
Mathematics