Please show all steps/work. I have attached the problem as well as a similar example problem that was completed to show the necessary steps. For step 2 please reduce using row echelon form (as seen in the example).

x = 2, y = 1

The given system of equations is:

x - y = 1

2x + y = 5

Write the system of equations in the form AX = B

Therefore:

x = 2 and y = 1

17   x 256=4352

sorry if this is wrong, i'm new.

step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.