Which expression best estimates 6 and three-fourths divided by 1 and two-thirds?
1 answer:
Answer: The expression is 7/2.
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Answer:
Since we know that
(a+b)
2
=a
2
+2ab+b
2
(a−b)
2
=a
2
−2ab+b
2
Now,
(i)
(x+3y)
2
=x
2
+2×x×3y+(3y)
2
=x
2
+6xy+9y
2
(ii)
(2x−5y)
2
=(2x)
2
−2×2x×5y+(5y)
2
=4x
2
−20xy+25y
2
(iii)
(a+
5a
1
)
2
=a
2
+2×a×
2a
1
+(
2a
1
)
2
=a
2
+1+
4a
2
1
(iv)
(2a−1a)=(1a)
2
(1a)
2
=1a
2
Answer
As long as the mass of the chip is evenly distributed on each side, whatever times you flip the chip,
The probability will always be 50%
The answer for this equation is x < 1
Answer:
y = -1/4 x+4 is blue
y = 1/2 x+4 is green
y = 3x is red
y = -1/2x is purple
y = 3 is black
