Answer:
24 students got off at the middle school.
Step-by-step explanation:
15 students
+
12 students
-
6 students
+
3 students
=
24 students (remaining students).
Answer:
Step-by-step explanation:
Mean = ∑x/ N
91 = ∑x / 150
∑x = 150 * 91 = 13650
x= 6825 and y = 6825
Answer:
pH can be different from 7 ( second statement is false)
Step-by-step explanation:
since
pH=pKa + log [A-]/[HA]
at half of the equivalence point
[HA]= [A-] (third statement is true)
and therefore
pH = pKa (first statement is true)
since pH = pKa , pH can be different from 7 ( second statement is false)
Answer:
The graph with the line passing through zero is the proportional one.
Step-by-step explanation:
