Mark says that 3.002 must be less than 3.0019, since 2 is less than 19. Explain why he is wrong.
1 answer:
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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