Answer:
x=-8
Step-by-step explanation:
on squaring both sides
either x-2=0 or x+8=0
either x=2 or x=-8
Putting x=2 in original equation, we get
7=7 hence, it is not an extraneous solution
Putting x=-8 in original equation
i.e. 3=-3
Hence, x=-8 is an extraneous solution (since it doesn't satisfy the original equation)
115 less then or equal to 3(5) + 25 + 5x
the family can bowl a total of 15 games, or 3 games each
x=#of hours worked
33 per hour or 33x (since 33 times every hour)
initial fee is independed of hours so
fee=33x+16
if fee=197 then solve for hours or x
197=33x+16
subtract 16 from both sides
181=33x
divide both sides by 33
5.4848484848=x
he worked 5.48 hours
Answer:
1 I think would be because they have the same tension of 5.0 and that their wavelengths are quite similar
#2 they increase as the tension goes up
#3 The speed would be up because that's what happened in all the other experiment of the waves
