What is the length of this line?

I believe it is 9

Step-by-step explanation:

If you turn that into a triangle then find the area it is 9.

Hope this Helps!

Think of it as a right triangle. You can use pythagorean theorem.

a^2 + b^2 = c^2

6^2 + 3^2 = c^2

36 + 9 = c^2

45 = c^2

sqrt45 = c

Step-by-step explanation:

16 kids because 2 times 8 equals 16

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.