Answer:
B. 39°
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Algebra I
Geometry
- [Right Triangles Only] SOHCAHTOA
- [Right Triangles Only] tanθ = opposite over adjacent
Explanation:
Step 1: Identify
Angle θ = y
Opposite Leg = 8
Adjacent Leg = 10
Step 2: Solve for y
- Substitute [Tangent]: tan(y) = 8/10
- Simplify: tan(y) = 4/5
- Inverse Trig: y = tan⁻¹(4/5)
- Evaluate: y = 38.6598
- Round: y ≈ 39°