Answer:
x=10
Step-by-step explanation:
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Answer:
the square root of 55, or 7.42
Step-by-step explanation:
Use the Pythagorean Theorem, or a²+b²=c², where a and b are the sides or "legs" of the triangle and c is the hypotenuse.
a is 3, b is x, and c is 9
If you plug that into the equation, you get 3²+x²=8²
We can make this 9+x=64 by squaring the 3 and 8.
Then we can subtract 9 from each side to get x=55.
Finally, take the square root of 55 to get √55 or 7.42.
I hope this helped!
Answer:
56x² + 2xy+ 3y²
Step-by-step explanation:
81x²+18xy+18xy+4y² - (25x²+10xy+y²) = 56x² + 2xy+ 3y²
93.2
= 93 + 0.2
= 93 + 2 /10
= 93 and 2/10
= 93 and 1/5
As mixed fraction = 93 and 2/10 or 93 and 1/5