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Alex17521 [72]
2 years ago
9

Did I do this right?

Mathematics
1 answer:
zavuch27 [327]2 years ago
8 0

Answer:

3CuCl2 + 2Ni → 3Cu + 2NiCl3

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A car dealership has five exterior color choices, six interior color choices, and two model choices. How many different ways cou
skelet666 [1.2K]

Answer: I believe it would be 42 different ways.

Step-by-step explanation:

multiply the 7 and the 6 to determine it

4 0
3 years ago
3 + (10 − 2)2 ÷ 4 ⋅ 1/2 whole to the power of 4
pshichka [43]

Answer:

equals 4 i believe..

Step-by-step explanation:


4 0
3 years ago
Help find the surface area
zhenek [66]
Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.
8 0
2 years ago
Read 2 more answers
What is the volume of this cube?
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1

Step-by-step explanation:

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6 0
2 years ago
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3x - 5y = 14 and – 2x + 2y = 0
zubka84 [21]

Answer:

x=5.6

y=-5.6

Step-by-step explanation:

3x - 5y = 14 Equation 1

– 2x + 2y = 0 Equation 2

Simultaneous equation can be solved either through elimination method or substitution method. But we use elimination method for this question

Multiply equation 1 by -2 (the coefficient of x in equation 2) and multiply equation 2 with 3 (the coefficient of x in equation 1), so that x will have the same coefficient in the new equations, and easy to eliminate

-2(3x - 5y = 14)

-6x+10y=-28 Equation 3

3(– 2x + 2y = 0)

-6x+6y=0 Equation 4

Subtract equation 4 from 3 to eliminate x

-6x+10y=-28

-6x+6y=0

-6x-(-6x)=-6x+6x=0

10y-6y=5y

-28-0=-28

5y=-28

y=-28/5

y=-5.6

Substitute for y in equation 2

– 2x + 2y = 0

– 2x + 2(-5.6) = 0

-2x-11.2=0

-2x=11.2

x=-11.2/2

x=5.6

7 0
2 years ago
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