2 years ago

This is for a grade,Please help me out as much as you can!!!

Mathematics

1 answer:

kolbaska11 [484]2 years ago

5 0

Answer:

Step-by-step explanation:

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How do you solve 27?

dedylja [7]

We have

$\left(\dfrac{2}{3}\right)^x=\dfrac{2^x}{3^x}$

And we want

$\dfrac{2^x}{3^x}=\dfrac{16}{81}=\dfrac{2^4}{3^4}$

Another way to read it is

$\dfrac{16}{81}=\left(\dfrac{2}{3}\right)^4=\left(\dfrac{2}{3}\right)^x$

It should be clear that the solution is $x=4$

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If its talking about the temperature decreased it would be -11 but it's asking for an integer

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3 years ago

Mark wants to use a grid to model the percent equivalent of the fraction 2/3. How many grid squares should be shade? What percen

natka813 [3]

Answer:

66 + 1 ( not fully shaded ) squares will be shaded.

66.67% region will be shaded

Step-by-step explanation:

It is given that Marks uses a grid to model percent equivalent of $\frac{2}{3}$ .

Let us assume that Mark uses a model containing 100 grids.

Now, as the grids are divided into region equivalent to $\frac{2}{3}$ i.e. it is divided into 3 parts.

Moreover, 2 out of those 3 parts will be shaded.

As, $\frac{2}{3} =0.6667$

i.e. $\frac{2}{3}$ =66.67%

So, it gives us that 66 squares in the grid will be fully shaded and one will not be fully shaded.

Hence, 66 + 1 ( not fully shaded ) squares will be shaded and in percent, 66.67% of the region will be shaded.

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2 years ago

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The area of a rectangle is (4x2 − 49y2) square units. Determine the dimensions of the rectangle by factoring the area expression

Pani-rosa [81]

Answer:

Step-by-step explanation:

$(4x^{2} - 49y^{2} ) = (2x+7y)(2x-7y)$

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2 years ago

Can somebody please help me with this but not 13

natita [175]

Could you make the picture clear and back it up a little then i will see it better

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3 years ago

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