Lin drew a triangle and dilation of the triangle with scale factor
a. What is the center of the dilation? Explain how you know.

b. Which triangle is the original and which triangle is the dilation? Explain how you know.

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.

$5.41

step-by-step explanation:

$20 - $14.51 = $5.49.

-60.75

step-by-step explanation:

just add the numbers then put the negative sign on it

160 cm

step-by-step explanation:

you have to add all the sides together