Answer:
1/4x+1/2=1/3x
Step-by-step explanation:
by solving for x. simplifying both sides of the equation, then isolating the variable.
Answer:
I think it B but I really don't know cause need like an example
Answer:
Step-by-step explanation:
Let X be the length of pregnancy.
X is N(268, 15)
a) Prob of pregnancy lasting 307 days or longer
= P(X>307) = 
=0.5-0.4953
=0.0047
b) Lowest 2% is 2nd percentile
Z=-2.55
X score = 268-2.55(15)
= 229.75 days
If length of days >230 days then it is not premature.
Answer:
a
Step-by-step explanation:
20-9=11
-2(5,6)-40 I think that's it