6
Solve
\( -5 y-7 \leq 3 \)
A \( y \geq 2 \)
B \( y \leq 2 \)
C \( y \leq-2 \)
D \( y \geq-2 \)
7
Solve the inequality \( -4 \leq 3 x+2< 5 \)
A \( -1< x \leq 2 \)
B \( -1 \leq x< 2 \)
\( C-2< x \leq 1 \)
\( D-2 \leq x< 1 \)
8
Solve the equation \( x(10 x-1)=2 \)
\( A x=0 \) or 0.1
\( B x=2 \) or 0.3
\( C x=0.5 \) or -0.4
\( D x=-0.5 \) or 0.4
9 Solve the quadratic equation \( 21 x^{2}-12 x+1=0 \)
A 0.074 or 0.645
B 0.101 or 0.470
C -0.645 or 0.074
D -0.470 or 0.101
10 Solve the quadratic equation \( y^{2}+10 y+29=0 \)
A \( 5 \div 6 \sqrt{6} \) or \( 5-6 \sqrt{6} \)
\( B-5+6 \sqrt{6} \) or \( -5-6 \sqrt{6} \)
\( C 5+2 i \) or \( 5-2 \hat{i} \)
D) \( -5+2 i \) or \( -5-2 i \)
11
Solve the quadratic equation \( x^{2}-6 x+13=0 \)
A \( 3-2 \hat{i} \) or \( 3+2 \hat{i} \)
\( B-3-2 i \) or \( -3+2 i \)
C- 1.690 or 7.690
D -7.690 or 1.690
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