Given:
r, s, t are midpoints of ab, bc, and ca. if rs = 5, then ac =

AC= 10

Step-by-step explanation:

Given: In ΔABC , R,S,T are the midpoints of AB, BC and CA

          length of RS= 5

To find : length of AC

Solution: By mid segment theorem which state that

In a triangle, the segment joining the midpoints of any two sides will be parallel to the third side and half of its length.

using this theorem , RS parallel to AC and

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

3: 2

step-by-step explanation:

shorter piece is 2: 3, so just reverse it, and you get 3: 2