Suppose you go on an 8-hour car trip. For the first 6 hours, you travel at an average rate of r miles per hour on the highway. For the last
2 hours, you travel at an average rate of 30 mph slower in the city.
Find the distance traveled.

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

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.

2

step-by-step explanation:

the answer is:

mean: 6

mad: 2.14