Expand . ( 3x –2 ) 2 please help me with this.
2 answers:
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Answer:
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Given:
Find:
Solution: It looks like 2 is at the end of the parenthesis where the power would be instead of distributing the number. If so the following steps would be followed.
<u>Expand</u>
<u>Simplify</u>
Therefore, after following the provided information we are able to determine that the expanded form would be 9x^2 - 12x + 4.
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<h2>Basic Trigonometric Ratios</h2>
These are the three basic trigonometric ratios:
- The sine ratio:
- The cosine ratio:
- The rangent ratio:
Here, 'opposite' or adjacent are referring to the legs in relation to one of the interior angles of the triangle, θ.
We can use these ratios to help us solve for side lengths or angles, depending on what information is given to us and what information we must solve for.
<h2>Solving the Question</h2>We're given:
- The indicated angle (θ) measures 70°
- The adjacent side measures 5.7 units
- We must solve for the other leg, which is the 'opposite' side
Because this question involves the adjacent and the opposite, we can use the tangent ratio to find the answer.
⇒ Plug in the given information:
⇒ Multiply both sides by 5.7 to isolate 'opposite:
⇒ Round to the nearest tenth:
The length of the other leg is 15.7 units.