Substitute x = 3 in any given equations. I will do in y = - x + 1
Therefore the answer is (3,-2)
The mean is the average.
Let A = mean
A = (18 + 14 + 9 + 6 + 3)/5
A = 50/5
A = 10
Ellie's mean time is 10 seconds.
Answer:
x < 13
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
Step-by-step explanation:
<u>Step 1: Define</u>
3x < 39
<u>Step 2: Solve for </u><em><u>x</u></em>
- Divide 3 on both sides: x < 13
Here we see that any value <em>x</em> smaller than 13 would work as solution to the inequality.
Work backward: Multiply out (x-8i) and (x+8i).
The product is x^2 - [64i^2], or x^2 - [-64], or x^2 + 64
This is equivalent to 1x^2 + 0x + 64, and so a=1, b=0 and c=64.
