In the US the average man, age 20 years or older, weighs 195.7 lbs. and standard deviation 13 lbs. weight follows a normal distribution. If 10 men are ramdomly selected, find the probabilty their mean weight exceeds 200 lbs.

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

$15 each

step-by-step explanation:

$45/3 children= $15 each

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a

inverse operation of addition