Answer:
Step-by-step explanation:
(2x^2-11)(x^2+2)
2x^4-7x^2-22
To solve for j, cross multiply:
4 x 45 = 18 x j
180 = 18j
Divide both sides by 18:
j = 10
Complete the recursive formula of the geometric sequence 16\,,\,3.2\,,\,0.64\,,\,0.128,...16,3.2,0.64,0.128,
Nastasia [14]
Answer:
for all n>0,
Step-by-step explanation:
Let
be the sequence described.
A geometric sequence has the following property: there exists some r (the ratio of the sequence) such that
forr all n>0.
To find r, note that

Similarly


Thus
for all n>0, and
Mean = sum of values / number of values
74 = x/32
2368 = x
70 = y/19
1330 = y
mean for female students = (2368 - 1330)/(32-19) = 79.85