Question

AC=?
HELP HELP HELP!!

Answer 1

AC ≈ 3.76

General Formulas and Concepts:

Math

• Rounding

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Equality Properties

• Multiplication Property of Equality
• Division Property of Equality
• Addition Property of Equality
• Subtraction Property of Equality

Trigonometry

• [Right Triangles Only] SOHCAHTOA
• [Right Triangles Only] sinθ = opposite over hypotenuse

Explanation:

Step 1: Identify

Angle θ = 70°

Opposite Leg = AC

Hypotenuse = 4

Step 2: Solve for AC

1. Substitute in variables [sine]: sin70° = AC/4
2. [Multiplication Property of Equality] Isolate AC: 4sin70° = AC
3. Rewrite: AC = 4sin70°
4. Evaluate: AC = 3.75877
5. Round: AC ≈ 3.76