Use the diagram to answer the following question. If AB=3x-2 and EF=x+1, find AB. Triangle is inside of another triangle with midpoints. Answer is 10. Show steps: 2(3x-2) = 1/2( x+1)2
6x-4 = x+1
-x +4 = -x+4
5x = 5
x = 1
Check: 3(1) - 2 = 1 Should be: 3(4) - 2 = 10
Where is my mistake?

a

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.

answer: im gonna go with milli

step-by-step explanation: