In parallelogram BEST, diagonals BS and ET bisect each other at O. 1. If ES = 10cm, how long is BT?
2. If BE = 13cm, how long is TS?
3. If EO = 6cm and SO = 7cm, what is the length of ET? BS?
4. If ET + BS = 18cm and SO = 5cm, find ET and BS.

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form

answerim :

n

step-by-step explanation:

im not sure but my dad knows

answer:

idk

step-by-step explanation: