Answer:
10y + 5
Step-by-step explanation:
You need to combine the Numbers with variables, and the numbers without variables need to be combined as well. Therefore, the answer is 10y +5.
Answer:
D
Step-by-step explanation:
Option D
In the function every y value corresponds to one of x value, here we have two of same x values against different y values
The answer is A and D -30+d but you can also get the answer by multiplying like lets say d=2 30+30=60 and 30*2=60.
For any arbitrary 2x2 matrices
and
, only one choice of
exists to satisfy
, which is the identity matrix.
There is no other matrix that would work unless we place some more restrictions on
. One such restriction would be to ensure that
is not singular, or its determinant is non-zero. Then this matrix has an inverse, and taking
we'd get equality.