Which number is greatest? a.6.23*10^12 b.6.23*10^8 c.6.23*10^-6 d.6.23*10^3

For this case, they ask us which of the given numbers, in scientific notation, is greater.

So:

is equivalent to rolling the decimal 12 times to the right.

is equivalent to rolling the decimal 8 times to the right.

is equivalent to rolling the decimal 6 times to the left.

is equivalent to rolling the decimal 3 times to the right.

Thus, we observe that the greatest number is

Option A

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

answer: 100

step-by-step explanation: