AB=
Round your answer to the nearest hundredth.

AB ≈ 9.46

General Formulas and Concepts:

Math

Round

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition 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] cosθ = adjacent over hypotenuse

Step-by-step explanation:

Step 1: Identify

Angle θ = 25°

Adjacent Leg = 4

Hypotenuse = AB

Step 2: Solve for AB

Substitute in variables [cosine]:                                                                       sin25° = 4/AB[Multiplication Property of Equality] Multiply AB on both sides:                   ABsin25° = 4[Division Property of Equality] Isolate AB:                                                      AB = 4/sin25°Evaluate:                                                                                                           AB = 9.46481Round:                                                                                                               AB ≈ 9.46

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