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Serhud [2]
3 years ago
14

What's an easier way from multiplication ?

Mathematics
2 answers:
Anvisha [2.4K]3 years ago
8 0
I'm not sure what exactly you mean by from but maybe addition or division
Svet_ta [14]3 years ago
5 0
An Easier Way For Multiplication Is Addition
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Help!!!!!!!!!!!!!!!!!!!
Furkat [3]
Here, (7 * 9) = (7 * 10) - (7 * x)

Here, Take 7 as a common factor according to distributive property:

= 7(10 - x)

Now, 10-x = 9
x = 10-9 = 1

In short, Your Answer would be 1

Hope this helps!
3 0
3 years ago
10. Simplify the rational expression by rationalizing the denominator. 3 sqrt 160/sqrt 1350x A) 2 sqrt 15x/15x B) 3 sqrt 160/135
Viefleur [7K]
The simplified expression by rationalizing the denominator is (C)\frac{4 \sqrt{15x} }{15x}.

First we must simplify the expression:
\frac{3 \sqrt{160} }{\sqrt{1350x} } =  \frac{12 \sqrt{10} }{15 \sqrt{6x} } =  \frac{4 \sqrt{10} }{5 \sqrt{6x} }

Then we factor the rational parts and cancel it out:
\frac{4 \sqrt{2} \sqrt{5} }{5 \sqrt{2} \sqrt{3x} } = \frac{4\sqrt{5} }{5\sqrt{3x} }

Then we rationalize the expression:
\frac{4\sqrt{5} }{5\sqrt{3x} } * \frac{\sqrt{3x} }{\sqrt{3x} } = \frac{4 \sqrt{15x} }{5*3x} = \frac{4 \sqrt{15x} }{15x}

<span>Finally, the simplified expression by rationalizing the denominator is (C)\frac{4 \sqrt{15x} }{15x}.</span>
7 0
3 years ago
Five more than a certain number is 11 less than double the number
kupik [55]

Answer:

The number is 16

Step-by-step explanation:

Five more than a certain number is 11 less than double the number

x+5 = 2x-11

11+5 = 2x-x

16 = x

5 0
3 years ago
Read 2 more answers
Brainliest + Points!
sleet_krkn [62]
0.33% because you just divide both of them together, I will show my work on paper, it will take a second

work:

3 0
3 years ago
Read 2 more answers
Given M = the set of counting numbers and N = the set of even numbers, find M - N.
dedylja [7]

Answer:

M-N = set of odd numbers

M-N  = 1,3,5,7,9,11,.....................................so on it till infinity

Step-by-step explanation:

M = the set of counting numbers

set of counting number are are all the numbers which is used for counting.

They are also called Natural numbers

In numerical form set of counting numbers can be represented as

M = the set of counting numbers = 1,2,3,4,5,6,7,8,9..............................till infinity

N = the set of even numbers

set of even numbers all the counting numbers which are multiple of two

In numerical form set of counting numbers can be represented as

N = the set of even numbers = 2,4,6,8,10,12................so on till infinity

__________________________________

now we have to find M-N

it means from set of counting number, all the even numbers would be excluded

IN such case

If we exclude all the even numbers, then only odd numbers will remain.

M-N will be = 1,3,5,7,9,11,.....................................so on it till infinity

If we look it closely , the given set is set of odd numbers

odd numbers are counting numbers in form of 2n+1 where n = 0,1,2,3....

Thus,

M-N can also be said as set of odd numbers

M-N = set of odd numbers

M-N  = 1,3,5,7,9,11,.....................................so on it till infinity

3 0
3 years ago
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