Answer:
20
Step-by-step explanation:
Answer:
the meaning of logarithm is a quantity representing the power to which a fixed number (the base) must be raised to produce a given number.
Step-by-step explanation:
: )
Answer:
X=7.9
Y=7.9
Step-by-step explanation:
We have that x=y
And form Pythagoras theorem we have
![5 \sqrt{5} = \sqrt{x ^{2} + x ^{2} } \\ take \: the \: square \: of \: the \: two \: sides \\ 125 = 2x ^{2} \\ x {}^{2} = 62.5 \\ x = 7.9](https://tex.z-dn.net/?f=5%20%5Csqrt%7B5%7D%20%3D%20%20%5Csqrt%7Bx%20%5E%7B2%7D%20%2B%20x%20%5E%7B2%7D%20%20%7D%20%20%20%5C%5C%20take%20%5C%3A%20the%20%5C%3A%20square%20%20%5C%3A%20of%20%5C%3A%20the%20%5C%3A%20two%20%5C%3A%20sides%20%5C%5C%20125%20%3D%202x%20%5E%7B2%7D%20%20%5C%5C%20x%20%7B%7D%5E%7B2%7D%20%20%3D%2062.5%20%5C%5C%20x%20%3D%207.9)
So x = y = 7.9
B. is the correct answer as 387 contains 80 and 8 * 10 = 80. I hope this helps!!