Please answer correctly !!!!!!!!!!!!! Will mark Brianliest pleaseeeee !!!!!!
1 answer:
Answer:
2sqrt(10)
Step-by-step explanation:
Use the Pythagorean theorem.
x^2 + 3^2 = 7^2
x^2 + 9 = 49
x^2 = 40
x = sqrt(40)
x = 2sqrt(10)
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45 should be it
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