1.the length of a garden is 4m more than twice it's width and it's area is. 38m².Which of the following equations represent the given?
A.2x²+4x=19
B.x²+2x=19
C.x²+x=19
D.x²+2x=38
2.the length of the flower plant box is 5m longer than it's width and the area is 36m².How long is the plant box?
A.4m
B.5m
C.9m
D.13ms
3.Which of the following is a quadratic inequality?
A.ax²+bx+c=0
B.ax+bx+c=0
C.ax²+bx+c>0
D ax+bx+c<0
4.What described best x²-1<x+1?
A.quadratic equation
B.quadratic function
C.inequality
D.quadratic inequality
5.What is the solution set of x²+9x+14>0?
A.{x:x<6 or x>1}
B.{x:x<-7 or x>-2}
C.{x:-2<x<7)
D.{x:2<x>5}
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Answer:
1.D
2.D
3.A
4.A
5.A
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