Astudy of 420,095 danish cell phone users found that 0.0321% of them developed cancer of the brain or nervous system. prior to this study of cell phone use, the rate of such cancer was found 0.0340% for those not using cell phones. use ti-84 caculator. a) use the sample data to construct s 90% ci estimate of thr percentage of cell phone users who develop cancer of the brain or nervous system. b) do cell phone users appear to have a rate of cancer of the brain or nervous system that is different from the rate of such cancer among those not using cell phones? why or why not?

i think the correct option is the second option.

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:

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