Answer:
4 sqrt(3) =x
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
sin theta = opp / hyp
sin 60 = x / 8
8 sin 60 = x
8 ( sqrt(3)/2) = x
4 sqrt(3) =x
Answer(a):
Order of matrix A = 3x3 {because number of rows=3, number of columns=3}
Order of matrix B = 3x3
Order of matrix C = 1x3
3A will be of order 3x3 because multiply by scalar doesn't change the order. Which is same as the order of matrix B.
So 3A+B is possible.
We simply multiply all elements of A with 3 and add them with corresponding elements of B.

Answer(b):
2B will be of order 3x3 because multiply by scalar doesn't change the order. Which is NOT same as the order of matrix C.
So 2B+C is NOT possible.
Answer(c):
CA is possible only if
number of columns of C = number of columns of A
3=3
which is true hence CA is possible.

= 
<em><u>If the matrix is not visible properly then look at the attached picture.</u></em>
Sam gets (500/10)*3=150<span>£
harry gets (150/100)*35= 52.5</span>£
Answer:
Anything. Variables look like anything, because a variable is just a placeholder for whenever you want to put in another number.
Some examples: x, y, Ф, β
Mi hermano me dice que no tengo nada que ver con el que no me deja