Answer:n=-2 or n=4
Step-by-step explanation:
Q is not inversible if det(Q)=0

I must assume you meant 251 / 4 (not 25 1/4).
251
-----
4
====
-3
-------
8
can be evaluated by inverting the second fraction and multiplying the result:
251 -8
----- * -----
8 3
The 8s cancel, leaving us with -251/3. Note that -248/3 = -83, so that the magnitue of -251/3 must be a little larger than -83.
251 divided by 3 is 83 with a remainder of 2: 251/3 = 83 2/3
So -251/3 = -83 2/3 (answer)
Answer:
This may not be the numbers but just follow the way in how i did it hope it helps!!!
Step-by-step explanation:
SA= 2lw x 2lh x 2wh
Length - 5m
Width - 4m
Height - 6m
= 2 (5 x 4)+2 (5 x 6)+2 (4 x 6)
=2 ( 20)+2 (30)+2 (24)
= 40 + 60 + 48
=148
The dimensions of a second rectangular prism that will have the same surface area will be the below:
Length - 6m
Width - 5m
Height - 4m
SA = 2lw + 2lh + 2wh
= 2(6 x 5)+2 ( 6 x 4) +2 ( 5 x 4)
=2(30)+2 (24)+2 (20)
=60 + 48 + 40
= 148