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3 years ago

3.Simplify the expression. 9xy2 – 11xy2 show your work

1 answer:

6 0

Ok so 9x minus 11x you get -2x then the two y^2 cancel each other out to get -2x if the y^2 is separate from the x variable. However if its all one then it would be just 9 minus 11 to get -2 then putting the variable back on the end to get -2xy^2.

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Its the pythagorem theorem

Vlada [557]

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3 years ago

PLS HELP

Sloan [31]

Answer:

8√5 units.

Step-by-step explanation:

See the diagram in the coordinate plane attached.

A rhombus has four equal sides and to find the perimeter of the rhombus we have to measure any of the sides of the figure of the rhombus.

The coordinates of the topmost point are (-1,-1) and that of the rightmost point are (3,-3).

Therefore, side length of the rhombus will be

$\sqrt{(- 1 - 3)^{2} + (- 1 - (- 3))^{2}} = \sqrt{20} = 2\sqrt{5}$ units.

So, the perimeter of the rhombus will be (4 × 2√5) units = 8√5 units. (Answer)

The distance between two points $(x_{1},y_{1})$ and $(x_{2},y_{2})$ on a coordinate plane is given by

$\sqrt{(x_{1} - x_{2})^{2} + (y_{1} - y_{2})^{2}}$

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4 years ago

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irina1246 [14]

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3 years ago

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deff fn [24]

Answer: it is the alphabet

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3 years ago

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Simplify the expressions by combining like terms<br><br> 4.2j + 6.7j - 5j - 5

Ganezh [65]

Answer:

5.9j-5

Step-by-step explanation:

(4.2+6.7-5)j-5

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3 years ago

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