Answer:c
Step-by-step explanation:7x15
Express the matrix like , where if and if . ( is known as kronecker's delta)
In the same form we express the matrix .
The firs index indicate the row and the second the column.
By the multiplication of matrices we have , where
because only is non-zero in the last sum.
therfore we have .
In the same manner we have
, where
And so,
Answer:
5(y / 7)
Step-by-step explanation:
A quotient is the answer to a division problem. This tells us that y and 7 are being divided.
We have (y / 7) so far.
Five times this quotient (y / 7) can be represented by 5*, as the quotient is being multiplied by 5.
The final expression can be shown as: 5(y / 7).
Answer:
47 degrees
Step-by-step explanation:
The sum of angles in a triangle must be 180
32+101+x=180
133+x=180
x=47.