Answer:
B. 8
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
Trigonometry
- [Right Triangles Only] SOHCAHTOA
- [Right Triangles Only] cos∅ = adjacent over hypotenuse
Explanation:
Step 1: Define
Angle = 37°
Adjacent Leg = x
Hypotenuse = 10
Step 2: Solve for x
- Substitute [Cosine]: cos37° = x/10
- Isolate x: 10cos37° = x
- Rewrite: x = 10cos37°
- Evaluate: x = 7.98636
- Round: x ≈ 8