Step-by-step explanation:
x²+2x-3=0
(x²+3x)-(x-3)=0
x(x+3)-1(x+3)=0
(x-1)(x+3)=0
x=1 or x=-3
Answer:
y - 7 = m (x- 0)
Step-by-step explanation:
Slope intercept form is y = mx + b. B is the y intercept, which gives us a point: (0, 7) that we can use in point slope form. M is the slope, 4/5. Now we have all the pieces for point slope form:
y - y1 = m (x - x1)
Now plug in the info!
y - 7 = m (x- 0)
Answer:
When making bread from scratch, the recipe calls for 2/3 cup of water
Step-by-step explanation:
Answer:

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
- Subtraction Property of Equality
<u>Trigonometry</u>
- [Right Triangles Only] SOHCAHTOA
- [Right Triangles Only] cosθ = adjacent over hypotenuse
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify variables</em>
Angle θ = 45°
Adjacent Leg = 25
Hypotenuse = <em>x</em>
<u>Step 2: Solve for </u><em><u>x</u></em>
- Substitute in variables [cosine]:

- [Multiplication Property of Equality] Multiply 25 on both sides:

- Rewrite:

- Evaluate:

9/36 and 1/4 because you and divide and multiple those