Author: Study Clue

Which equation is already simplified into standard quadratic form with all terms on one side A 4×2=x+24×2=x+2 B 4x=x2+24x=x2+2 C

Which equation is in the standard quadratic form with degree 2 A ax+by+c=0ax+by+c=0 B ax3+bx+c=0ax3+bx+c=0 C ax2+bx+c=0ax2+bx+c=0 D a/x+b=0a/x+b=0 Explanation

Two supplementary angles are in ratio 2:72:7. Larger angle is A 120° B 150° C 140° D 160° Explanation Let

Which figure has two endpoints and fixed length A ray B line C plane D line segment Explanation A line

Solve the equation 11x−7=7011x−7=70 A x = 6 B x = 7 C x = 8 D x = 9

After simplifying, solve 6x−5=3x+106x−5=3x+10 A x = 5 B x = 3 C x = 4 D x = 6

Which value of xx satisfies 2x+3=112x+3=11 A x = 4 B x = 3 C x = 5 D x

If x+1x=3x+x1=3, value of x2+1x2x2+x21 is A 9 B 5 C 7 D 11 Explanation Square both sides: (x+1x)2=x2+2+1×2=9(x+x1)2=x2+2+x21=9. So

For x=−2x=−2, value of 2×2−3x+12×2−3x+1 is A 9 B 5 C 15 D -15 Explanation Substitute x=−2x=−2: 2(4)−3(−2)+1=8+6+1=152(4)−3(−2)+1=8+6+1=15. Square first,

In the term 7x7x, the coefficient of xx is A x B 7 C 1 D 0 Explanation The coefficient