It should be noted that a quadratic function simply refers to a function that is in the form of f(x) = ax² + bx + c.
<h3>Examples of quadratic equations</h3>
It should be noted that the examples of quadratic functions will be throwing a ball, hitting a golf ball, driving from a platform, etc.
In such a case, one will want to know the highest and the lowest point of the parabola that is known as the vertex. In engineering, quadratic equations are used to design curved equipments.
Learn more about quadratic equations on:
brainly.com/question/1214333
Answer:
I believe that the answer is 40 degrees.
Step-by-step explanation:
A central angles' measurement is the same measure of the intercepted arc
Step-by-step explanation:
Let the first number be <em>x</em>
Let the second number be <em>y</em>
<em>x</em> = y - 9
3x = 4y + 12
3x - 4y = 12
3(y - 9) - 4y = 12
3y -4y - 27 = 12
-y = 12 + 27
-y = 39
y = -39
x = y - 9
x = -39 - 9 = -48
Answer:
Step-by-step explanation:
Since we are in quadrant 2, sine is positive. Since sine is positive and cosine is negative, then tangent is negative.
Now I'm going to find the sine value of this angle given using one of the Pythagorean Identities, namely .
If given , then we have by substitution of .
Let's solve:
for .
Subtract 4/9 on both sides:
Simplify:
Square root both sides:
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Multiplying top and bottom by 3 gives:
I'm going to move the factor of -1 to the top: