$$\begin{bmatrix} 1 & k & 0 \\\\ 0 & -4-k*k & k \\\\ 6 & 2k & k \end{bmatrix}$$
56y-21y2
Yesterday the temperature at noon was 25°F. By midnight, it had decreased by 31.3°F. What was the temperature at midnight?
a(x-y)=s make x subject
250febided by180.15
284 Grade-12 students. If there are 22 more male students than the female students, how many male students are there?
540 000 000 x 5,18
the pair of linear equations x-2y-5=0 and 2x-4y-1=0 have
2^2-2+1
250devided by180.15