A livestock company reports that the mean weight of a group of young steers is 1076 pounds with a standard deviation of 76 pounds. Based on the model ​N(​1076,76​) for the weights of​ steers, what percent of steers weigh ​a) over 950 ​pounds?
​b) under 1100 ​pounds?
​c) between 1200 and 1300 ​pounds?

d. vertex

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.

the answer will be b x² +x-1

step-by-step explanation: