
the denominator cannot be zero, because the division by zero is not defined, therefore:
![\begin{gathered} x^2-9=0 \\ \text{Solving for x:} \\ x^2=9 \\ \sqrt[]{x^2}=\sqrt[]{9} \\ x=\pm3 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20x%5E2-9%3D0%20%5C%5C%20%5Ctext%7BSolving%20for%20x%3A%7D%20%5C%5C%20x%5E2%3D9%20%5C%5C%20%5Csqrt%5B%5D%7Bx%5E2%7D%3D%5Csqrt%5B%5D%7B9%7D%20%5C%5C%20x%3D%5Cpm3%20%5Cend%7Bgathered%7D)
Therefore the domain of (f o g)(x) is:
Answer:
17 dimes and 21 nickels.
Step-by-step explanation:
Answer:
21°
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
<u>Geometry</u>
- Vertical Angles - Angles that are directly opposite of each other are congruent
Step-by-step explanation:
<u>Step 1: Set Up Equation</u>
(x + 7)° = (5x - 49)°
<u>Step 2: Solve for </u><em><u>x</u></em>
- Subtract <em>x</em> on both sides: 7 = 4x - 49
- Add 49 on both sides: 56 = 4x
- Divide 4 on both sides: 14 = x
- Rewrite: x = 14
<u>Step 3: Find angle measure</u>
- Define: (x + 7)°
- Substitute in <em>x</em>: (14 + 7)°
- Add: 21°
B) 0.000307
Step-by-step explanation: Move the decimal between 3 and 0 to the left 4 times
Choose every cook until the last one has been choosen