Answer:
dc
Step-by-step explanation:
The answer is b.
when x decreases, f(x) decreases.
when x increases, f(x) increases.
Answer:
x=33
Step-by-step explanation:
............,.....
Answer:
1: -7.8
2:-38
3:5
4:-7.6
Step-by-step explanation:
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Answer:
x = 2
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
- Subtract Property of Equality
Step-by-step explanation:
<u>Step 1: Define</u>
10.5x - 1.9 = 19.1
<u>Step 2: Solve for </u><em><u>x</u></em>
- Add 1.9 to both sides: 10.5x = 21
- Divide 10.5 on both sides: x = 2
<u>Step 3: Check</u>
<em>Plug in x into the original equation to verify it's a solution.</em>
- Substitute in <em>x</em>: 10.5(2) - 1.9 = 19.1
- Multiply: 21 - 1.9 = 19.1
- Subtract: 19.1 = 19.1
Here we see that 19.1 does indeed equal 19.1.
∴ x = 2 is a solution to the equation.