Answer: d) determinant cannot be found
<u>Step-by-step explanation:</u>
You can only find the determinant of a SQUARE matrix.
In other words, the dimensions must be 2 × 2 or 3 × 3 or ... n × n
The dimensions of the given matrix is 2 x 3, so the determinant cannot be calculated.
Answer: y=3x
Step-by-step explanation:
y=y+ x+x+x
y=3x
Answer:

Step-by-step explanation:
we know that
The diagonal of a cube is equal to

where
b is the length of an edge of the cube
we have

substitute


Answer:
240 because first u have to figure out 40%of 50% and than 1200
Step-by-step explanation:
Answer:
X= -9
Y=7
Z=119
X=-70
Y=0.8
z=4.667
Step-by-step explanation:
X=-18-6= -24/3= -9
Y=24+11/5= 35/5= 7
Z=10+7=17*7=119
X=-2-5=-7*10=-70
Y=19-7=12/15=0.8
Z=-2+4=2*7=14/3=4.667