Drag each tile to the correct box. david proved the law of cosines with reference to ? abc using a different method. arrange the steps of his proof in the correct sequence. (on simplification) in , (pythagorean theorem) in , (pythagorean theorem) (transitive property) therefore, . (on simplification) draw a perpendicular, , from b to side ac. let and . therefore, . (on simplification) similarly, prove that and .

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step-by-step explanation:

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step-by-step explanation:

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.