B. The product of two irrational numbers if rational
Example: The square root of 2 times the square root of 3, is the square root of 6, which is still irrational.
12 the answer is 12 I know it
They are telling you to make inches into feet
I foot equals 12 inches
84 divided by 12 equals 7
Answer is seven
The probability of one woman to have height less than 64.4 in is 0.6293
<u>Explanation:</u>
Given:
Mean, μ = 64.4
Standard deviation, δ = 1.8
Probability that the height of the woman is less than 65 inch = ?
So,
P(x < 65) = 65 - μ / δ

P (x < 65) = P( z < 0.33)
Finding the probability value from the z table we get:
P( z < 0.33) = 0.6293
Therefore, the probability of one woman to have height less than 64.4 in is 0.6293