There are no real roots for a negative number, so -81 has no real roots, if the number is 81 however, then the tow roots are 9
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➷ The square root of 81 is 9
We have -4 + 9
Thus, your answer is 5
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Answer:
that library has only 3 books? it needs to open a book raising fund
Answer:
Width of the rectangle = 6.7 ft
length of the rectangle = 10.7 ft
Step-by-step explanation:
ABCD is the rectangle.
AB = length of the rectangle = 4 + x ft
BC = width of the rectangle = x ft
AC = Diagonal of the rectangular field = 12 ft
Since ΔABC is the Right angle triangle. So





By solving above equation we get
x = 6.7 ft
Thus is the width of the rectangle.
And length of the rectangle = 4 + x
⇒ 4 + 6.7
⇒ 10.7 ft