Find the 12th term of the geometric sequence 4, 8, 16, ...
1 answer:
You might be interested in
Let the number of students who bought tickets be s,
Let the number of adults who bought tickets be a,
Equation 1:
Equation 2:
Substitute ( 2 ) into ( 1 ),
Substitute a = 110 into ( 2 ),
Ans: 40 Student Tickets, 110 Adult Tickets
Let the number of adults who bought tickets be a,
Equation 1:
Equation 2:
Substitute ( 2 ) into ( 1 ),
Substitute a = 110 into ( 2 ),
Ans: 40 Student Tickets, 110 Adult Tickets
if the degrees in this triangle are truly 90-45-45, then the two unknown lengths are the same
and the pythagorean theorem holds anyways: a² + b² = c², where c is the longest side in a right triangle.
c is 16, so 16² is 256
2* a² = 256
I wrote 2 times s because a and b are of same length
devide each side by 2
a² = 128
take the root
a and b are: