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Sunny_sXe [5.5K]

3 years ago

5

How many leaves are there in the universal set?

1 answer:

zaharov [31]3 years ago

7 0

Answer:

1)

8 leaves

2)

6 leaves

3)

2 leaves

Step-by-step explanation:

A universal set is the collection of all objects in a particular context or theory so there are 8 leaves all together. Its asking for the shaded ones only on the second question all together which is 6 leaves. and then not shaded ones all together which is 2 leaves.

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Solve by substitution: <br> -5x + y = -2<br> -3x + 6y = -12<br><br> please explain

fomenos

First we pick the equation. Let's say we pick first one. From it we express y.

$-5x+y=-2\Longrightarrow y=-2+5x$

Then we use this y and plug it in instead of y in the second equation.

$-3x+6(-2+5x)=-12$

Now just solve for x.

$-3x-12+30x=-12 \\-3x=-30x \\\underline{x=10}$

We plug this x in the first equation.

$-5\cdot10+y=-2$

And solve for y.

$-50+y=-2 \\\underline{y=48}$

So the solution to the equation is geometrically a point P which lies on the intersection of the two lines.

$\boxed{P(10,48)}$

Hope this helps.

r3t40

4 0

4 years ago