Data from the National Vital Statistics Report reveal that the distribution of the duration of human pregnancies is approximately normal with mean = 270 and standard deviation = 15. Use the table of standard normal probabilities to determine the probability that a given pregnancy comes to term in: A. less than 244 days (about 8 months)
. B. more than 275 days (about 9 months).
C. over 300 days.
D. between 260 and 280 days.

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.

step-by-step explanation:

step-by-step explanation:

659

d. corresponding side lengths in similar triangles are proportional in length.

step-by-step explanation: