A concrete mixing machine weighing 800 pounds needs to be loaded with rocks and sand. Trucks carrying 120 pounds of sand and 30 pounds of rocks will be used to load the machine. In order for the machine to function properly, the combined weight of the machine and the mixing load cannot exceed 2,800 pounds. Which inequality describes the restriction on truck loads, x, to ensure the mixing machine functions properly? A. 150x + 800 ≤ 2,800 B. 150x + 800 ≥ 2,800 C. 800x + 150 ≤ 2,800 D. 120x + 800 ≤ 2,800

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step-by-step explanation:

the probability is 0

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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