Answer:
c,d
Step-by-step explanation:
![ab^{-3x}=a(b^{-3})^x=a(\frac{1}{b^3} )^x=a[(\frac{1}{b} )^3]^x\\=a(\frac{1}{b} )^{3x}](https://tex.z-dn.net/?f=ab%5E%7B-3x%7D%3Da%28b%5E%7B-3%7D%29%5Ex%3Da%28%5Cfrac%7B1%7D%7Bb%5E3%7D%20%29%5Ex%3Da%5B%28%5Cfrac%7B1%7D%7Bb%7D%20%29%5E3%5D%5Ex%5C%5C%3Da%28%5Cfrac%7B1%7D%7Bb%7D%20%29%5E%7B3x%7D)
[|] Answer [|]

[|] Explanation [|]
Rewrite the equation with parts separated:
8 + 7/9 - 3 - 2/3
Solve the whole number parts:
8 - 3 = 5
Solve the fraction parts:
7/9 - 2/3
Find LCD of 7/9 & 2/3
7/9 - 6/9 = 1/9
5 + 1/9 = 5 1/9
![\boxed{[|] \ Eclipsed \ [|]}](https://tex.z-dn.net/?f=%5Cboxed%7B%5B%7C%5D%20%5C%20Eclipsed%20%5C%20%5B%7C%5D%7D)
Answer:172.5
Step-by-step explanation:Xoxo
Perimeter of triangle = 3×side
Perimeter of square = 4× side
Side of triangle = 5cm
Perimeter of triangle = 3×5
=15 cm
Perimeter of triangle =Perimeter of square
15cm = 4× side of square
Side of square = 15÷4
=3.75 cm
Therefore ,Side of square is 3.75 cm .
Answer:
Y=7
Step-by-step explanation:
PYTHAGOREAN THEOROM