Answer:
130
Step-by-step explanation:
Angle B = 180 - Angle A
180 - 50 = 130
It's the formula. Base times height.
For example: if 50 is the base and 10 is the height, just multiply them both.
50 x 10 = 500. And I don't think you add area-that's for finding the perimeter
Wish I could help, but this is a bit too hard... Maybe I can help in another question!
Just multiply "6/8" times 5.
(6/8)(5)
(6/8)(5/1)
*Find common denominator. Which is 8, so multiply "5/1" by 8.
(6/8)(40/8)
- Once you have the same bases, you multiply across.
240/8
-You can simplify this fraction by dividing by 8.
30.
- 30 is your answer.
9514 1404 393
Explanation:
The problem statement tells you what to do.
25^(n-1) +125 -6·5^n = 0 . . . . . subtract 6·5^n
(5^2)^(n-1) -6·5^n +125 = 0 . . . . express 25 as a power of 5
5^(2n-2) -6·5^n +125 = 0 . . . . . eliminate the double layer of exponent
(5^-2)(5^n)^2 -6·5^n +125 = 0 . . . . . use 5^n where possible
(1/25)y^2 -6y +125 = 0 . . . . . . . substitute y = 5^n
y^2 -150n +3125 = 0 . . . . . . . . . multiply by 25
_____
The applicable rules of exponents are ...
(a^b)^c = a^(bc)
(a^b)(a^c) = a^(b+c)
a^-b = 1/a^b
