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3 years ago

I need help I don’t understand how to do it

Mathematics

1 answer:

Kazeer [188]3 years ago

4 0

Answer:

7.2 inches

Step-by-step explanation:

area of a rhombus = base x height

to find the base (length) of the rhombus you rearrange this equation so that it becomes

base = area / height

base = 21.6in² / 3

base (length) = 7.2in

hope this helps :)

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kifflom [539]

The first step for solving this problem is to multiply both sides of the bottom equation by -3.
$\left \{ {{6x-9y=16} \atop {-6x + 9y = -21}} \right.$
Add the two equations together.
6x - 9y - 6x + 9y = 16 - 21
Eliminate the opposites.
-9y + 9y = 16 - 21
Remember that the sum of two opposites equals 0,, so the equation becomes the following:
0 = 16 - 21
Calculate the difference on the right side of the equation.
0 = -5
This means that the statement $\left \{ {{6x-9y=16} \atop {2x-3y=7}} \right.$ is false for any value of x and y. That means that the answer to your question is (x,y) ∈ ∅,, or no solution.
Let me know if you have any further questions.
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3 years ago

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Greeley [361]

Answer: no solutions

Step-by-step explanation:

12x+32=12x-7

12x-12x=-7-32

0x=-39

No solutions

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3 years ago

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alex41 [277]

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4 years ago

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Lelu [443]

$27.((3^{3})^{-1} = 27.(27)^{-1} = 27 .\frac{1}{27} = 1$

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And $(27)^{-1} means \frac{1}{27}$

For this reason, $27. (27)^{-1} = 1$

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