If a lineman can install 12 insulators in 18 3/4 hours how many can he install in 28 1/8 hours

18 insulators.

Step-by-step explanation:

In order to be able to calculate how many insulators can the lineman instal in 28 1/8 hours, if we know that he can instal 12 in 18 3/4 hours we just have to do a rule of three:

If you clear the rule of three you get the next function:

So now we know that the lineman can install 18 insulators in 28 1/8 hours.

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

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step-by-step explanation: