Hope it will help the formula SOHCAHTOA means Sin=oppsite\hypotenuse Cos=adjacent\hypotenuse and Tan=opposite\adjacent
You have to add AB and for BC you have to add it then you get your answer
Answer: Um, I think is 
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Step-by-step explanation:
The father hippo weighs 6,204 pounds.
You subtract the weight of the other hippos from the total weight of the family to get this.
In the step after -6x+10=4x+20, he moved the terms incorrectly. you have to add 6x to both sides so it would be 10=4x+6x+20 which simplifies to 10=10x+20. subtract 20 from both sides to get -10=10x. divide both sides by 10. the answer is x=-1
