Mathematics, 23.06.2019 11:30 mktdonaldson
Find the coordinates of point z that splits the segment xy located 3/7 of the way between x(-2,1) and y(4,5).
Answers: 2
then 
![\bf ~~~~~~~~~~~~\textit{internal division of a line segment} \\\\\\ X(-2,1)\qquad Y(4,5)\qquad \qquad \stackrel{\textit{ratio from X to Y}}{3:4} \\\\\\ \cfrac{X\underline{Z}}{\underline{Z} Y} = \cfrac{3}{4}\implies \cfrac{X}{Y} = \cfrac{3}{4}\implies 4X=3Y\implies 4(-2,1)=3(4,5)\\\\[-0.35em] ~\dotfill\\\\ Z=\left(\frac{\textit{sum of "x" values}}{\textit{sum of ratios}}\quad ,\quad \frac{\textit{sum of "y" values}}{\textit{sum of ratios}}\right)\\\\[-0.35em] ~\dotfill](/tpl/images/1201/0152/5adc1.png)
![\bf Z=\left(\cfrac{(4\cdot -2)+(3\cdot 4)}{3+4}\quad ,\quad \cfrac{(4\cdot 1)+(3\cdot 5)}{3+4}\right)\implies Z=\left(\cfrac{-8+12}{7}~,~\cfrac{4+15}{7} \right) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \left( \cfrac{4}{7}~~,~~\cfrac{19}{7} \right)~\hfill](/tpl/images/1201/0152/e9c0c.png)
Another question on Mathematics
Mathematics, 21.06.2019 16:50
For the equations below which statement is true ? -2x=14 6x=-42
Answers: 1
Mathematics, 21.06.2019 22:00
Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?
Answers: 3
Mathematics, 21.06.2019 22:00
Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4
Answers: 2
Mathematics, 21.06.2019 22:00
Find the maximum value of p= 4x + 5y subject to the following constraints :
Answers: 3
You know the right answer?
Find the coordinates of point z that splits the segment xy located 3/7 of the way between x(-2,1) an...
Questions
English, 09.11.2020 17:20
Spanish, 09.11.2020 17:20
Chemistry, 09.11.2020 17:20
