The weight of male americans between the ages of 18 and 25 is normally distributed, with a mean of 162.7lb and a standard deviation of 28lb. One definition of obesity states a person is obese if the z-score of his or her weight is greater than 2.

What is the obesity threshold weight for a young adult American male?

you can't solve x because it is 2 linear equation and you only have one equation

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.

the answer is mp

step-by-step explanation: