Answer:
3x^7 / y
Step-by-step explanation:
√63x^15y^9/√7xy^11
= √ [(63/7) x^(15-1) y^(9-11)
= √9x^14y^-2
= √9x^14 / y^2
= 3x^7 / y
Answer:
i cant even see the picture
Answer:
17.7778
Step-by-step explanation:
nSolve(1/4n + 1/5n = 8,n)
Solved with TI-nspire CX
Answer:
Step-by-step explanation:
Let M be the heights of men in the United States and W be the heights of women in the United States
Given that M is N(69.1, 2.9) and W (63.7, 2.7)
For a husband and wife we have average height as
=Z (say)
Var (Z) =
=
Mean = 66.4" and std dev = 2.258