B) 0.56
becouse you only need to divide 5 by 9
Answer in simplest radical form would be 7.(:
Answer:
B. H1= b1=0
Step-by-step explanation:
the alternative hypothesis is correct
Answer:
Don't quote me on this, but I think that the answer is C.
Answer:
C. 3.33 hours
Step-by-step explanation:
Use the algebra work equation:
=
+
, where tb is the time to work together, t1 is the time it takes one person, and t2 is the time it takes the other person
Plug in the values we know:
=
+ 
=
+ 
= 
20 = 6tb
3.33 = tb
So, it would take them 3.33 hours when working together.