Why is this undefined

Mathematics

2 answers:

Burka [1]3 years ago

7 0

Because you can’t divide something by zero!
Hope this helps!

olasank [31]3 years ago

6 0

Answer:

it is undefined because the denominator of the rational expression is zero and it is also not a rational expression

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Arjun solved the equation 7·=56. His work is shown.

alukav5142 [94]

Arjun should have divided both sides of the equation by 7 instead of multiplying.

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3 years ago

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B2-4b+4=0 using quadratic forumla

Ivan

Trying to factor by splitting the middle term

Factoring b2-4b+4
The first term is, b2 its coefficient is 1 .
The middle term is, -4b its coefficient is -4 .
The last term, "the constant", is +4 

Step-1 : Multiply the coefficient of the first term by the constant 1 • 4 = 4

Step-2 : Find two factors of 4 whose sum equals the coefficient of the middle term, which is -4 .

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Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -2 and -2
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Step-4 : Add up the first 2 terms, pulling out like factors :
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4 years ago

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Rena spent 6 days reading her book completing the same fraction of the book each day if she had a total of 8/9 of her book after

Artyom0805 [142]

Answer:

The fraction of the book that Rena read every day is $\frac{4}{27}$

Step-by-step explanation:

Rena spent 6 days reading her book completing the same fraction of the book every day and you want to know the fraction of the book she read each day. Knowing that Rena had a total of 8/9 of her book read after 6 days, then you simply divide the total amount of the book read during those days by 6, the number of days:

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To divide a fraction by a whole number, you must convert the whole number into a fraction, finding the reciprocal of that fraction, and multiply it by the first fraction. That is, you must find the reciprocal of the number that is after the division symbol; and then you multiply the first number (the one before the division symbol) by the reciprocal of the second number (the one after the division symbol). Remember that to find the reciprocal of a number, you simply have to change the numerator and denominator of the number.

Since 6 can be considered to be a fraction equal to $\frac{6}{1}$ , by inverting the number, then you get $\frac{1}{6}$