3 years ago

How do write 412.638 using expanded form using decimals

1 answer:

3 0

The answer is 400.000+ 10.000+ 2.000+ .600+ .030+ .008

I came to this conclusion because I took each number and replaced all of the other numbers with the place holder "0".

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What is the irrational number in This set: 12.89, square root of 12 and 12/144 ?

kifflom [539]

Good night,

<span>Irrational numbers are those that can't be expressed as a fraction:

12.89 can be expressed as: </span> $\frac{1289}{100}$

$\frac{12}{144}= \frac{1}{12}$

<span>The above numbers can be expressed as a fraction, then the logical answer is: </span> $\sqrt{12}$

But we will check the answer:

$\sqrt{12}= \sqrt{2^{2}*3 } =2* \sqrt{3} =3.4641016...$

As you can see we can't express that number as a fraction, so that is te correct answer.

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4 years ago

The Value of x in the system of equation at the right is -2 what is the value of a? use elimination to help you find the value.

sammy [17]

2x-4y=-16
ax+4y=6 +
--------------------
2x+ax=-10; for x=-2,
2(-2)+a(-2)=-10
-2a=-10+4
a=-6/-2
a=3

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3 years ago

Which type of triangle has 2 angles that measures 45?

dlinn [17]

Answer: it's obtuse. Yep

Step-by-step explanation:

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