Any arbitrary bisector from a vertex to an opposite side divides any given triangle into proportional ratios. In this case
9/(2x-1)=15/(3x) cross multiply
27x=30x-15 subtract 30x from both sides
-3x=-15 divide both sides by -3
x=5
Answer: 12
pls thank me and branliet
Step-by-step explanation:
Answer:
(b) a1 = 6, a(n) = a(n -1) +5
Step-by-step explanation:
It helps to recognize the form of a recursive definition for an arithmetic sequence. It looks like ...
![a_1=\text{(first term)},\ a_n=a_{n-1}+d\qquad\text{for common difference $d$}](https://tex.z-dn.net/?f=a_1%3D%5Ctext%7B%28first%20term%29%7D%2C%5C%20a_n%3Da_%7Bn-1%7D%2Bd%5Cqquad%5Ctext%7Bfor%20common%20difference%20%24d%24%7D)
Only one of the offered answer choices has this form. That is the correct choice.
First in order to solve you need to get rid of the fraction. You can do so by multiplying to entire equation by the denominator like so...
5(5r - 1/5) = (4/5)5
25r - 1 = 4
Then to isolate the variable you need to add 1 to both sides.
25r = 5
Then you divide.
r = 5/25
Simplify.
r = 1/5
I hope this helps love! :)
Answer:
3
Step-by-step explanation:
3-4-5 the 3 would be it do to the range is 4-5