Which method for solving quadratic equations is not always exact? graphing quadratic formula factoring completing the square
1 answer:
You might be interested in
Answer:
<h2><em>4</em><em>1</em></h2><em>Sol</em><em>ution</em><em>,</em>
<em>a</em><em>=</em><em>1</em><em>4</em>
<em>b</em><em>=</em><em>2</em><em>9</em>
<em>c</em><em>=</em><em>1</em>
<em>D=</em><em>1</em>
<em>Now</em><em>,</em>
<em></em>
<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em>
<em>Good</em><em> </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em><em>.</em>
<u><em>Answer:</em></u>
The bird is approximately 9 ft high up in the tree
<u><em>Explanation:</em></u>
The required diagram is shown in the attached image
Note that the tree, the cat and the ground form a right-angled triangle
<u>Therefore, we can apply special trigonometric functions</u>
<u>These functions are as follows:</u>
<u>Now, taking a look at our diagram, we can note the following:</u>
α = 25°
The opposite side is the required height (x)
The adjacent side is the distance between the cat and the tree = 20 ft
Therefore, we can use the <u>tan function</u>
<u>This is done as follows:</u>
which is 9 ft approximated to the nearest ft
Hope this helps :)
