Answer:
see below
Step-by-step explanation:
-2x^2-3=11
add three
-2x^2=14
divide by 2
x^2=7
Answer:
plz repost it
Step-by-step explanation:
I can be wrong but I tried really hard!
For this case we have the following expressions:

For 

For 

For
:

For any number, the expressions will be equivalent because 
ANswer:
and
have the same value for b = 1,2,3
Answer:
60+4.5pi
Step-by-step explanation:
6×10 obv + area of circle pi(r^2) and half that for a semi cirxle