The cookies in sarah's cookie jar decrease by 5 cookies every 2 days. which rational number does not describes the scenario?
a. 5 cookies 2 days
b. −5 cookies 2 days
c. 5 cookies −2 days
d.− 5 cookies 2 days

 5 cookies 2 days

Step-by-step explanation:

In integers , we use negative signs to represent "" decrease , fall , loss or drp ".

Given : The cookies in Sarah's cookie jar decrease by 5 cookies every 2 days.

Since there is fall of the number of cookies by 5 cookies every 2 days, in integers we represent the scenario with negative sign.

i.e.  −5 cookies 2 days OR  5 cookies −2 days OR − 5 cookies 2 days

i.e. the rational number does not describes the scenario (Positive sign)= 5 cookies 2 days

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.

sure i'm up for it

step-by-step explanation: