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Umnica [9.8K]
3 years ago
12

Why do we need a common denominator

Mathematics
2 answers:
Zanzabum3 years ago
8 0
If u do not have a comon den. that it will be confusing and u will not come up with the right answer 
KengaRu [80]3 years ago
4 0
Finding a common denominator<span> makes it possible to add two fractions because it allows us to </span>write each<span> fraction as a multiple of a </span>common<span> (usually smaller) fraction. Subtracting fractions works the same way; find a </span>common denominator<span> so that the fractions involved are in the same terms.
<span>
</span>[ Source: </span><span>www.mathmistakes.info/facts/AlgebraFacts/learn/fr/add.html ]</span>

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Pleasseeeee helpppppppppppppp <br> hurryyy please
Arlecino [84]
So to answer all of them ( I don’t know if you want that it Imma do it anyways). For the first question: Name a radius - QR. For the second question: Name a diameter - NR. For question three: Name a chord - OP. For the last question: If the length of QS is 8 units, what is the length of NR: Since QS is a radius than the length of NR would be 16. Hope this helps!
4 0
3 years ago
Find the future value of an annuity due of $7,000 paid at the beginning of each 6-month period for 8 years if the interest rate
Oliga [24]

Answer: Im not sure but i think its 120,960

Step-by-step explanation: i know that there is 2 of the 6-month periods in a year and multiplied that by 8 and got 16. Then i did 7000x.08=560 and then i added that to 7000 and got 7560. FInally i multiplied that by 16 and got 120,960.

4 0
3 years ago
What are the solutions to the equation <br><img src="https://tex.z-dn.net/?f=%20%7Cx%20-%208%7C%20%20%2B%202%20%3D%2020" id="Tex
nexus9112 [7]

Answer:

Solutions are -10 and 26

Step-by-step explanation:

( - the abolute sign I'm using

( x - 8 ) + 2 = 20

( x - 8 ) = 18

x - 8 = 18 (postive case)

x - 8 + 8 = 18 + 8

x = 26

( x - 8 ) = 18

x - 8 = -18 (negative case)

x - 8 + 8 = -18 + 8

x = -10

8 0
3 years ago
Suppose Joe earned three times as much as Marty during the summer.Together they earned 210.How much did each earn?
JulijaS [17]

Answer:

Marty got 70 and then Joe earned 3 times it

Step-by-step explanation:


7 0
3 years ago
What is the domain of the function y = -4x+1 if the range is -11
a_sh-v [17]

The range of a function is the set of all values that it can take when its independent variable takes values on the domain.

On the other hand, the range of a function is the domain of its inverse function, if that inverse exists, and vice-versa: the domain of a function is the range of its inverse function, if that inverse exists.

In the case of the given equation:

y=-4x+1

The inverse function exists since the function is linear, and it can be found by isolating <em>x</em>:

x=-\frac{1}{4}(y-1)

If the range of the original function is the set given by the number {

4 0
1 year ago
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