The fourth term of (a+b)^5 is 10a^2b^3.
For a=w, b=-4z, this is
.. 10*(w)^2*(-4z)^3
.. = -640w^2*z^3
Ticket for a pantomime cost $80 for children. A party of 25 pays $143 in total. how many adults were there in the party?
can anyone answer this?
can anyone answer this
Answer:
- 2.2675
Step-by-step explanation:
Answer
4.8 x 10^-3
Step-by-step explanation:
This is a geometric sequence with a common ratio of -1/3 and an initial term of -324. Any geometric sequence can be expressed as:
a(n)=ar^(n-1), in this case a=-324 and r=-1/3 so
a(n)=-324(-1/3)^(n-1) so the 5th term will be
a(5)=-324(-1/3)^4
a(5)=-324/81
a(5)= -4
