Juanita is 1.6 meters tall, wants to find the height of a tree in her backyard. From the tree’s base, she walks 13 meters along the tree’s shadow where her shadow exactly overlaps the end of the tree’s shadow. She is now 6.5 meters away from the end of the
shadow. How tall is the tree?

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.

the first one

step-by-step explanation:

just id the test.

16

step-by-step explanation: