3 years ago

How many tiles would it take to cover the Washington monument?

1 answer:

aalyn [17]3 years ago

4 0

Ummm what mush is it is a good thing you can get it to get it and you can see it and then get it done

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Rudik [331]

You can divide the whole expression by -3:

$-3x^2+24x=27 \iff x^2-8x = -9$

Recalling that

$(x-a)^2=x^2-2ax+a^2$

Let's compare the middle term:

$-8x = -2ax \iff a=4$

So, we want to complete

$(x-4)^2 = x^2-8x+16$

Which differs from $x^2-8x$ by 16. So, if we add 16 to both sides, we have

$x^2-8x=-9 \iff x^2-8x+16=7 \iff (x-4)^2=7$

3 0

3 years ago

8090 [49]

X is greater than or equal to -5

4 0

3 years ago

katen-ka-za [31]

X equals to 48

The work is shown in the picture. I hope this helps.

8 0

3 years ago

natali 33 [55]

Answer:

240

Step-by-step explanation:

2 is 1 + 1 so 120 + 120 must be the equivalent of 2.

5 0

3 years ago

Feliz [49]

If the order doesn't matter the it's
$C(20,4)=\dfrac{20!}{4!16!}=\dfrac{17\cdot18\cdot19\cdot20}{2\cdot3\cdot4}=4845$

6 0

3 years ago