-8x+18y=-12
24x-18y=18
16x=6
X=3/8
Y=3-12)/6
y=-3/2
we solve the second system: (it is more easy).
8x+9y=48
-8.5y=-51 ⇒y=-51/-8.5=6
8x+9(6)=48
8x+54=48
8x+54-54=48-54
8x=-6
x=-6/8=-3/4
Then; in te second system the solution is : x=-3/4; y =6
Now, we replace "x" by "-3/4" and "y" by "6", in the first systmen.
8x+9y=48
8(-3/4)+9(6)=-6+54=48. verified
12x+5y=21
12(-3/4)+5(6)=-9+30=21 verified
Therefore,
These two wystems are similar.
Answer:
If you mean Area=2 and Area=36units times 2 and Area=64units times 2, then the answer is that A = 64units times 2 would be the largest square.
Step-by-step explanation:
The larger the area, the larger the square. The first square has an area of 2. The second square has an area of 72, and the third square has an area of 128, so the third square is the biggest.
Answer:
A retrospective study
Step-by-step explanation:
When you’re looking back, it’s called retrospective. He’s taking his old results and using them to map his success rate with high accuracy.
A prospective study would be to make predictions with lower accuracy of things in the future.
Answer:
8
Step-by-step explanation:
f(n) = f(n -1) + 4
f(5) = (5 -1) + 4
= 4 + 4
=8