If $\begin{pmatrix}  2  &  1 \\  4 & 3 \end{pmatrix}$$\begin{pmatrix}  5 \\ 4 \end{pmatrix}$  = k$\begin{pmatrix}  17.5 \\ 40.0 \end{pmatrix}$, find the value of k.

Similar Questions

Find the sum of the first 20 terms of the sequence -7-3, 1, ...... ...

The ages, in years, of 5 boys are 5, 6, 6, 8 and 10. Calculate, correct to one decimal place, the st...

If (x + 1) is a factor of the polynomial $x^{3} + px^{2} + x + 6$. Find the value of p....

A body starts from rest and moves in a straight line with uniform acceleration of $5 ms^{-2}$. How...

If $\log_{9} 3 + 2x = 1$, find x....

Given that $n = 10$ and $\sum d^{2} = 20$, calculate the Spearman's rank correlation coeffic...

Solve the inequality $x^{2} - 2x \geq 3$...

Express $r = (12, 210°)$ in the form $a i + b j$....

Two statements are represented by p and q as follows: p : He is brilliant; q : He is regular in c...

Calculate, correct to one decimal place, the length of the line joining points X(3, 5) and Y(5, 1). ...