A segment is connected to two sides of a triangle so that it is parallel to the third side. What is the value of x?

A

Step-by-step explanation:

Set up a ratio for the two triangles that are there.

x/(x + 10) = 20 / (20 + 8)         Combine the two terms in the right denominator

x/(x + 10) = 20/28                   Cross Multiply

28x = 20(x + 10)                      Remove the brackets on the right

28x = 20 x + 200                    Subtract 20x from both sides

8x = 200                                  Divide by 8

x = 200 /8

x = 25

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.