Answer:
1. y=-5x+5
2. y=3x
3. the slope is 6 and the y-intercept is 7
Step-by-step explanation:
Answer:
B. -21a-15
Step-by-step Explanation:
![8a-7-29a-8 \\ \\ = 8a - 29a - 7 - 8 \\ \\ = - 21a - 15](https://tex.z-dn.net/?f=8a-7-29a-8%20%5C%5C%20%20%5C%5C%20%20%3D%208a%20-%2029a%20-%207%20-%208%20%5C%5C%20%20%5C%5C%20%20%3D%20%20-%2021a%20-%2015)
Answer:
A circle of radius = 7.496 or diameter = 14.99 or circumference = 47.1 feet has an area of: 1.63974 × 10-5 square kilometers (km²)
Step-by-step explanation:
Answer:
x = 5
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] Pythagorean Theorem: a² + b² = c²
- a is a leg
- b is another leg
- c is the hypotenuse
Step-by-step explanation:
<u>Step 1: Identify Variables</u>
Leg <em>a</em> = <em>x</em>
Leg <em>b</em> = 12
Hypotenuse <em>c</em> = 13
<u>Step 2: Solve for </u><em><u>x</u></em>
- Substitute in variables [Pythagorean Theorem]: x² + 12² = 13²
- Evaluate exponents: x² + 144 = 169
- [Subtraction Property of Equality] Subtract 144 on both sides: x² = 25
- [Equality Property] Square root both sides: x = 5