Answer:
(1, -2)
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
<u>Algebra I</u>
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define Systems</u>
4x + y = 2
y = x - 3
<u>Step 2: Solve for </u><em><u>x</u></em>
<em>Substitution</em>
- Substitute in <em>y</em>: 4x + (x - 3) = 2
- Combine like terms: 5x - 3 = 2
- Isolate <em>x</em> term: 5x = 5
- Isolate <em>x</em>: x = 1
<u>Step 3: Solve for </u><em><u>y</u></em>
- Define equation: y = x - 3
- Substitute in <em>x</em>: y = 1 - 3
- Subtract: y = -2
Answer:
y-2.0
x-2.3
Step-by-step explanation:
hope it help
Answer:
-3 = -2
Step-by-step explanation:
3 (x + 1) - 6 = 5x - 2 (1 + x)
3x + 3 - 6 = 5x - 2 - 2x
3x - 3 = 5x - 2 - 2x
3x - 3 = 3x - 2
= -3 = -2
a = 6.2
Solution:
Given ABC is triangle.
AC = b = 8, BA = c = 11, ∠A = 32.2°
BC = a
To find the length of a:
Law of cosines:
Taking square root on both sides of the equation.
a = 6.1464
a = 6.2
The length of BC is 6.2.
