<h3>Answer:</h3>
Option B: 63
<h2>Given that:</h2>
The given function is 
<h2>Explanation:</h2>
To evaluate the value of a function at given value of input, you should replace the variable given in the function with the value of input that is given, in your case it is x = 5.
For x = 5, we have

Similarly, you will be able to evaluate the value of the function for any other input given, which is assumed to be valid.
Hence option b: 63 is the correct option.
For more information, refer to the link given below:
brainly.com/question/532781

They are the same fraction, so they are proportional.
Answer:
Step-by-step explanation:
<u>Use cosine:</u>
- cos = adjacent / hypotenuse
- cos ∠L = KL/JL
- cos 21° = 4/x
- x = 4 / cos 21°
- x = 4.3 (rounded)
Answer:
Alrighty so number one is <em>5
z (x + 2y)</em>, and number two is <em>13x + 19y - 34z</em>
<span>Because there are 20 coins plus four bars = 24 items to choose. You want to choose where to put the four bars, thus C(24,4). There are four bars, not five. Note that four bars divide the 20 coins into five sections. Five bars would divide it into six, but we only have five different kinds of coins to choose from.</span>