A red horse and a black horse raced on a 1-mile-long circular racetrack. The red horse completed the race in 120 seconds, and the black horse completed the race in 150 seconds. Which choice correctly describes the speed of the horses?
O A. Only the red horse ran at a constant speed.
OB. Only the black horse ran at a constant speed.
C. The red horse's average speed was greater than the black horse's average speed.
O D. The black horse's average speed was greater than the red horse's average speed.

step- i d k and i d c : )

you: : 0

bye

congruent segments

step-by-step 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.