Answer:
a=15
Step-by-step explanation:
By pythagoras' theorem
25²=20²+a²
625=400+a² group like terms
a²=625-400
a²=225
therefore a=15
I need help please !!!!!!!!
1 answer:
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Step-by-step explanation:
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Hey there!
This seems like a algebraic expression
SO,
Remember: negative and negative = positive
positive and positive = positive
positive and negative = negative
negative and positive = negative
In this problem we will be doing negative and negative so that means our answer will be a negative
Firstly, lets line up our decimals to solve this problem (once when you do that , you can solve it easier)
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~
This seems like a algebraic expression
SO,
Remember: negative and negative = positive
positive and positive = positive
positive and negative = negative
negative and positive = negative
In this problem we will be doing negative and negative so that means our answer will be a negative
Firstly, lets line up our decimals to solve this problem (once when you do that , you can solve it easier)
Answer:
Good luck on your assignment and enjoy your day
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