9 + √2 / 4 - √7
Multiply the numerator and denominator by the conjugate.
Exact form:
(36 + 9√ 7 + 4√2 + √14) / 9
or
about 7.69
:)))
12. 6$
13. 60 birds
14. 10 inch
Answer:
You simply substitute 8 for n
A₈ =3(8)+4=28
As a mixed number 3 29/100 or as an improper fraction 329/100