Step-by-step explanation:
-5x+8y=-4
6x-8y=-12 8y and 8x cancel out
x=-16
To solve for y, substitute x=-16 back into the first equation
-5(-16)+8y=-4
80+8y=-4
8y=-84
y=-10.5
In this case
the only thing that you have to do is to isolate x
and then put y instead of x and put x instead of y :
Answer:
Step-by-step explanation:
If the sides of square a and b are the legs of the right triangle, then we can use the quadratic equation to find the hypotenuse, which would be made with square c's length.
a^2 + b^2 = c^2
10^2 + 12^2 = c^2
100 + 144 = c^2
244 = c^2
= c
Now since this is the side length, we then square that number to get the area.
^ 2 = 244 cm
Answer:
456,000,000
Step-by-step explanation:
Sorry if this is wrong :(
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Answer:
the answer is 8 please let me know if i was right.
Thanks!
Step-by-step explanation: