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Grade 11 Trigonometry CCSS: HSF-TF.C.9

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What is the missing explanation in step 6?
  1. Pythagorean Identity
  2. Cancel like factors
  3. Substitution Property of Equality
  4. Division Property of Identity
Grade 5 Defining Words
A showing and explanation of how something works
  1. determination
  2. description
  3. demonstration
  4. perform
Grade 8 Historical Geology
Which is a possible explanation for mass extinctions?
  1. Earth had no water.
  2. A meteorite collided with Earth.
  3. The continents separated.
  4. Woolly mammoths left no offspring.
Grade 11 Trigonometry CCSS: HSF-TF.C.9

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What is the missing explanation in step 7?
  1. Substitute in the sine addition formula
  2. Apply the Law of Sines
  3. Cancel like terms
  4. Factor out like terms
Grade 8 Scientific Method
College Scientific Methods and Applications
Grade 11 Trigonometry CCSS: HSF-TF.C.9

This question is a part of a group with common instructions. View group »

What is the missing explanation in step 1?
  1. Definition of tangent
  2. Pythagorean Identity
  3. Law of Sines
  4. αα=1, ββ=1
Grade 8 Scientific Method
A possible explanation that can be tested is a(n)
  1. prediction.
  2. analysis.
  3. hypothesis.
  4. conclusion.
Grade 10 Scientific Method
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