You have to deal with this type of question step by step. Firstly, you can figure out all the unknown values (such as sqrt x-3), by substituting x for 19, as you are trying to figure out f(x) when x=19. Therefore:
x+2=21
sqrt(x-3)=sqrt(19-3)=sqrt 16=4
Now the equation is easier to handle:
3/21 - 4
We can write this as 3/21 - 4/1 , which equals -27/7.
100 students walk to school each day because no matter if you ride the bus or bike to school, you still gotta walk into the school
Yurrr
Answer:
9
Step-by-step explanation:
subtract 14 from 23 to get 9
Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality
<u>Algebra I</u>
- Functions
- Function Notation
- Coordinates (x, y)
<u>Calculus</u>
Derivatives
Derivative Notation
Antiderivatives - Integrals
Integration Constant C
Integration Rule [Reverse Power Rule]: 
Integration Property [Multiplied Constant]: 
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
Point (0, 18)

<u>Step 2: Find General Solution</u>
<em>Use integration</em>
- [Derivative] Rewrite:

- [Equality Property] Integrate both sides:

- [Left Integral] Integrate [Integration Rule - Reverse Power Rule]:

- [Right Integral] Rewrite [Integration Property - Multiplied Constant]:

- [Right Integral] Integrate [Integration Rule - Reverse Power Rule]:

- Multiply:

<u>Step 3: Find Particular Solution</u>
- Substitute in point [Function]:

- Simplify:

- Add:

- Rewrite:

- Substitute in <em>C</em> [Function]:

Topic: AP Calculus AB/BC (Calculus I/II)
Unit: Integration
Book: College Calculus 10e
Answer:
D. y = (x - 3)²
Step-by-step explanation:
The parabola formula in vertex form is:
y = a(x - h)² + k
where the vertex is located at (h, k). Replacing with vertex (3, 0) we get:
y = a(x - 3)² + 0
y = a(x - 3)²
In all possible options the leading coefficient <em>a</em> is equal to one. Therefore:
y = (x - 3)²