How do you subtract rational numbers? how is subtracting rational numbers similar to adding rational numbers? how csn you tell whrn the difference will be positive or negative?

KEEP the sign of the first number the same.

CHANGE subtraction to addition.

CHANGE the sign of the second number to the opposite, positive becomes negative, negative becomes positive.

i think its 3 3/10 :) sorry if i'm wrong :(

Step-by-step explanation:

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc