Davon is picking out some movies to rent, and he has narrowed down his selections to 4 children's movies, 3 documentaries, 6 com
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So the definition of the cosine of an angle of a right triangle is 
. You may remember this by SohCahToa (sine is opposite over hypotenuse, cosine is adjacent over hypotenuse, tangent is opposite over adjacent).
Remember, adjacent refers to the side next to the angle in question, and the side can't also be the hypotenuse. The hypotenuse is that longest side and is opposite the right angle.
We have the cosine of 30°. We write
Remember, adjacent refers to the side next to the angle in question, and the side can't also be the hypotenuse. The hypotenuse is that longest side and is opposite the right angle.
We have the cosine of 30°. We write
well, another way to word it will be, we know "x" and "y" are directly proportional, we also know that x = 6 when y = 42, what is "y" when x = 1?
Answer:
First Picture ⇒ [B] <em>a = -2, b = 1, and c = -5</em>
<em>Second Picture ⇒ First step: Identify a = 1, b = 3, c = -4</em>
<em> </em>
<em> </em>
Third Picture ⇒ Missing Info
Fourth Picture ⇒ [A]
Fifth Picture ⇒
Step-by-step explanation:
<em>-------------------------------------------------------------------------------------------------------------</em>
<em>Identify the a,b, and c-values for this equation:</em>
<em>y = -2x² + x -5 </em>
<em>Quadratic Formula:</em>
<em>ax²+bx+c=0</em>
<em>−2x²+1x−5=0</em>
<em>a = -2, b = 1, and c = -5</em>
<em>-------------------------------------------------------------------------------------------------------------</em>
Order the steps for solving this equation using the quadratic formula.
x<em>² + 3x - 4 = 0</em>
<em>Solving to see what are the steps:</em>
<em>First step: Identify a = 1, b = 3, c = -4</em>
<em />
<em>-------------------------------------------------------------------------------------------------------------</em>
<em>Use the quadratic formula to find the solution set for 2x² + 15 = -11x.</em>
<em>Add 11x to both sides:</em>
<em>2x² + 15+11x = -11x+11x</em>
<em>Simplify</em>
<em>2x² + 11x+15 = 0</em>
<em>Now solve with quadratic formula..</em>
<em />
Hence, [A]
<em>-------------------------------------------------------------------------------------------------------------</em>
<em>Suppose you are solving a quadratic equation and this is your work so far...</em>
<em>x ² - 5x + 6 = 0</em>
<em>Thus, we have:</em>
<em />
<em>-------------------------------------------------------------------------------------------------------------</em>
<u><em>Kavinsky</em></u>