1. the square of a number, n, is equal to the sum of that number and 11. which equation represents this relationship? a. 2n = n + 11 b. (n + 11)2 = n +11 c. n2 = n + 11 d. 2n = n − 11 2. which inequality represents the statement below? four less than 6 times n is more than 20. a. 4n > 20 b. n - 4 > 20 c. 6n - 21 > 4 d. 6n - 4 > 20

16.9 times 2.85

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.

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