Answer:
-10.7
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
substitute -8 into x.
f(-8)=-8+18=10
A . y = 2(18 + x)
b. y = (8 + x)(10 + x)
or y = x^2 + 80 + 18x
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:
5y+11
Step-by-step explanation:
y+2y+2y+2+9
5y+11