2.5cm
3.0cm
3.5cm
4.0cm
Correct answer is D
\(5^{2}=3^{2}+x^{2}\\
25-9=x^{2}\\
16=x^{2}\Rightarrow x=4.0\)
The diagram above is a rectangle. If the perimeter is 36m, find the area of the rectangle ...
The graph above is that of a quadratic function y = 2x2 - x - 6 The roots of the equation are...
In the diagram, PQR is a triangle.|PQ| = |PR|, |PS| = |SQ| and PRS = 50°. What is the size of &a...
Solve the inequality: \(\frac{1}{3}(2x - 1) < 5\)...
What percentage of the population are married? correct to one decimal place ...
If dy/dx = 2x - 3 and y = 3 when x = 0, find y in terms of x. ...
In the diagram, triangle MNR is inscribed in circle MNR, and line PQ is a straight line. ∠M...
Find y, if \(\begin{pmatrix}5 & -6 \\2 & -7\end{pmatrix}\begin{pmatrix}x \\ y \end...