Answer:
Exact form: y=75/4 Decimal form: y=18.75 Mixed number form: y=18 3/4
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
9.03
Step-by-step explanation:
Just divide 63.21 by 7
Answer:
Less than 264.44 days would be for the shortest 20%
Step-by-step explanation:
Given that X, the length of a human pregnancy is normally distributed with a mean of 272 days with a standard deviation of 9 days (Bhat & Kushtagi, 2006).
X is N(272, 9)
Corresponding Z score would be for any x

We have to find out the shortest 20%
Corresponding z score i.e. z score 20th percentile is given by
-0.84
corresponding x score is

Less than 264.44 days would be for the shortest 20%
Answer:
4 x 3 - 1 x 20 = -8
H u m a n F i n g e r P i e.