Triangle klm is similar to triangle rst.
the following statement is a proportionality statement for the ratio of the sides of the triangles.

kl/rs=lm/st=km/rt

true or false?

Step-by-step explanation:

When we demonstrate a similarity, we deduct corresponding congruences and proportions.

It's important to know that similarities are about proportional sides, but congruent angles.

So, if ΔKLM is similar to ΔRST, that means corresponding sides are proportional, which pairs of sides are corresponding? Well,

SO, the proportional relation is

You can see this corresponding side in the image, KL is at the same position than RS, this also apply for LM and ST, KM and RT.

Therefore, the given statement is true.

step-by-step explanation:

equation

you are asked to write the equation

  expression = 0

using the given expression. when you do that, you have

  2x^2-2x-12 = 0

factoring

you can see that each of the coefficients is even, so a factor of 2 can be removed immediately.

  2(x^2 -x -6) = 0

if you multiply the binomials (x+a)(x+b), you get

  (x +a)(x +b) = x^2 +(a+b)x +ab

this tells you the coefficient of x is the sum of two factors of the constant term. here, that means -1 is the sum of two factors of -6. we want to know those factors so we can factor the trinomial.

  -6 = -1×6 = -2×3 = -3×2 = -6×1

the factor pair that sums to -1 is {-3, 2}, so our factorization is

  2(x -3)(x +2) = 0

solutions

the solutions to this equation are the values of x that make the product zero. a product is zero only when only of the factors of the product is zero. here, that means

  x - 3 = 0

  x = 3 . . . add 3 to both sides of the equation

or

  x +2 = 0

  x = -2 . . . add -2 to both sides of the equation

the solutions to the equation are x=3 or x=-2. both of these values of x satisfy the equation—they make it be true.

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation: