Answer:
Here is answer please give brainliest!
Explanation:
The Human Development Index (HDI) is a statistic composite index of life expectancy, education, and per capita income indicators, which are used to rank countries into four tiers of human development. A country scores a higher HDI when the lifespan is higher, the education level is higher, and the gross national income GNI (PPP) per capita is higher. It was developed by Pakistani economist Mahbub ul Haq and Indian economist Amartya Sen and was further used to measure a country's development by the United Nations Development Programme (UNDP)'s Human Development Report Office.
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Answer:
Lenght of RS= 2
Explanation:
We were told that Points R, S, and T are collinear, then RT, RS and ST are on straight line which can be expressed linearly as;
RS + ST= RT.......eqn(1)
We know that
RS = 2x – 4
ST = 3x + 2
RT = 13.
Then just substitute these into eqn(1)
(2x - 4) + (3x + 2)= 13
If you simplify and collect like-terms
bracket we have
2x+3x=13+4
5x =15
x=15/5
x = 3
To find RS, Then substitute the value of x into equation of RS, we have
RS = 2x – 4
RS = 2(3) - 4
= 6 - 4
= 2
Therefore, the length of RS =2