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labwork [276]
3 years ago
15

Can someone tell me if this is right

Mathematics
1 answer:
Ivan3 years ago
3 0

No you have to right

2:1

4:2

6:3

8:4

These are correct

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Calculate the density of a piece of<br> wood with a mass of 80g and a<br> volume of 90cm³
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Answer:

0.89 g/cm³

Step-by-step explanation:

used the formula d=M/V

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Y = -X + 1<br> Y = 3<br> Substitution method
eduard

Answer:

x=-2, y=3. (-2, 3).

Step-by-step explanation:

y=-x+1

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8 0
3 years ago
Find the slope line that goes through the following points
grandymaker [24]

Answer:

B and D

Step-by-step explanation:

to calculate the slope m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

(4)

with (x₁, y₁ ) = (0, - 4) and (x₂, y₂ ) = (3, - 1) ← 2 points from table

m = \frac{-1+4}{3-0} = \frac{3}{3} = 1 → B

(5)

with (x₁, y₁ ) = (- 1, - 4) and (x₂, y₂ ) = (2, 5) ← 2 points from table

m = \frac{5+4}{2+1} = \frac{9}{3} = 3 → D


5 0
3 years ago
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