Answer:
-11
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
x² + 9x + 3
x = -2
<u>Step 2: Evaluate</u>
- Substitute in <em>x</em>: (-2)² + 9(-2) + 3
- Exponents: 4 + 9(-2) + 3
- Multiply: 4 - 18 + 3
- Subtract: -14 + 3
- Add: -11
Answer: 5
Step-by-step explanation: Let us pretend that the number is x. So, the equation will be like this:
3x-5=2x
x=5
As we know the formula to calculate the slope is m = y2 - y1 divided by x2 - x1.
Where m is the slope. y2 is the second y co ordinate. y1 is the first y co ordinate. x2 is the second x co ordinate. x1 is the first x co ordinate.
So to calculate we can write it out as -7 = v - (-5) / 5 - 7, which further becomes -14 = v + 5 and v comes out to be -19.
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