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9000023804

Level:

Identify a true statement which concerns to the following equation. \[ \sqrt{x + 3} = x - 3 \]

The solution is in the interval \((5;8)\).

The solution is in the interval \([ - 2;2] \).

The solution is in the interval \([ - 3;1)\).

The solution is in the interval \([ 3;5)\).

9000023903

Level:

Let \([x;y]\) be the solution of the system \[\begin{aligned} 2x + 3y & = -2, & & \\3x - 2y & = 10. & & \end{aligned}\] Find \(5x + y\).

\(8\)

\(- 12\)

\(- 8\)

\(12\)

9000023806

Level:

Identify a true statement which concerns to the following equation. \[ \sqrt{3x + 4} = x \]

The solution divides \(4\).

The solution divides \(1\).

The solution divides \(2\).

The solution divides \(3\).

9000023904

Level:

Let \([x;y]\) be the solution of the system \[\begin{aligned} 4x - 3y & = -3, & & \\x + 2y & = 13. & & \end{aligned}\] Find \(2x - 7y\).

\(- 29\)

\(- 41\)

\(- 11\)

\(31\)

9000023807

Level:

Identify a true statement which concerns to the following equation. \[ \sqrt{x + 3} = \frac{x} {2} \]

The solution is a multiple of \(2\).

The solution is a multiple of \(4\).

The solution is a multiple of \(8\).

The solution is a multiple of \(12\).

9000023905

Level:

Let \([x;y]\) be the solution of the system \[\begin{aligned} 2x + 5y & = 7, & & \\ - 4x - 3y & = 7. & & \end{aligned}\] In the following list identify a true statement.

\(x^{2} + y^{2} = 25\)

\(x^{2} + y^{2} = 7\)

\(x^{2} - y^{2} = -7\)

\(y^{2} - x^{2} = 7\)

9000023808

Level:

Identify a true statement which concerns to the following equation. \[ \sqrt{x + 5} = x + 3 \]

The solution \(x\) satisfies \(|x| = 1\).

The solution \(x\) satisfies \(|x| = 2\).

The solution \(x\) satisfies \(|x| = 3\).

The solution \(x\) satisfies \(|x| = 4\).

9000023906

Level:

Let \([x;y]\) be the solution of the system \[\begin{aligned} 2x + 3y & = 4, & & \\4x + 6y & = 9. & & \end{aligned}\] In the following list identify a true statement.

The system does not have any solution.

\(x < y\)

\(x > y\)

\(x = y\)

9000023809

Level:

Identify a true statement which concerns to the following equation. \[ \sqrt{16 - 5x} = 2 - x \]

The solution \(x\) satisfies \(|x| > 3\).

The solution \(x\) satisfies \(|x| < 3\).

The solution \(x\) satisfies \(|x + 1| < 3\).

The solution \(x\) satisfies \(|x + 1| > 3\).

9000023907

Level:

Let \([x;y]\) be the solution of the system \[\begin{aligned} - x + 2y & = 6, & & \\2x + 3y & = 2. & & \end{aligned}\] In the following list identify a true statement.

\(|x| = |y|\)

\(|x| < |y|\)

\(|x| > |y|\)

The system does not have any solution.

A

9000023804

9000023903

9000023806

9000023904

9000023807

9000023905

9000023808

9000023906

9000023809

9000023907

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