Answer: 
Step-by-step explanation:
Given expression, 
= √(4×8)×√(4×7)×√3×√(3×√2)
= √4×√8×√4×√7×√3×√3×√2 ( because √(m×n)=√m×√n)
=√4×√4×√8×√2×√7×√3×√3
=4×√(4×2)×√2×√7×3
=4×√4×√2×√2×√7×3
=4×2×2×√7×3
=48√7
Thus,
=
When you divide something by 3/4, there's no way something can decrease, unless the number is a fraction below 3/4.
Since in Step 2, they divided 27 by 3/4, but ended up with 20 1/4, that means that they got step 2 wrong, because 27 / (3/4) is equal to 27 * 4/3 = 36
(This is because dividing by a fraction is the same thing as multiplying by the reciprocal of the fraction.)
So therefore they got Step 2 wrong.
Answer:
Step-by-step explanation:
2. Should be 500
8. Should be 290
The rest are correct
First you want to find the slope. Pick any two points. (150,200) and (300,100) x2-x1/y2-y1
300-150=150
100-200=-100
150/-100= -1.5
Y=mx+b. M is the slope b is the y intercept
Y=-1.5x+300
Yes that is correct 27 pieces
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26 students