The perimeter of a basketball court is 84 meters and he length is 6 meters longer than twice the width. what are the length and width?

Length: 30m

Width: 12m

Step-by-step explanation:

Length: 2x+6 meters     Width: x meters

2(2x+6) meters + 2(x) meters

4X+12 +2x = 84 meters

6x+12 = 84 meters

6x = 72 meters

x = 12 meters

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.