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Alika [10]
3 years ago
9

Which is true about the degree of the sum and difference of the polynomials 3x5y – 2x3y4 – 7xy3 and –8x5y + 2x3y4 + xy3?

Mathematics
2 answers:
Alekssandra [29.7K]3 years ago
7 0
<span>First we have to find the sum and the difference of those polynomials- The sum is: ( 3 x^5y - 2 x^3y^4 - 7 xy^3 ) + ( - 8 x^5y + 2 x^3y^4 + xy^3 ) = 3 x^5 - 2 x^3y^4 - 7xy^3 - 8 x^5y + 2 x^3y^4 + xy^3 = - 5 x^5y - 6 xy^3. And the difference: ( 3 x^5y - 2 x^3y^4 - 7 xy^3 ) - ( - 8 x^5y + 2 x^3y^4 + xy^3 ) = 3 x^5y - 2 x^3y^4 - 7 xy^3 + 8 xy^5 - 2 x^3y^4 - xy^3 = 11 xy^5 - 4 x^3y^4 - 8xy^3. The highest exponent in both polynomials is 5. Answer: The degree of the polynomials is 5.</span>
const2013 [10]3 years ago
7 0

Answer:D

Step-by-step explanation:

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-3.2(-5.9)(7) = ? answer pls ty
Brut [27]

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Step-by-step explanation:

8 0
3 years ago
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3/5x + 1/3 &lt; 4/5x - 1/3
lapo4ka [179]

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8 0
3 years ago
on selling a fan for rupees 4700 A shopkeeper loses 6% at what price must he sell it to gain 6 percentage ​
Sliva [168]

Given:

Selling price of a fan = Rs.4700

Loss percent = 6%

To find:

The price at which he must sell it to gain 6 percentage.

Solution:

Let x be the cost price of the fan.

Loss percent = 6%

Selling price = Cost price - 6% of cost price

S.P.=x-\dfrac{6}{100}x

S.P.=x-0.06x

S.P.=0.94x

Selling price of a fan = Rs.4700

4700=0.94x

\dfrac{4700}{0.94}=x

5000=x

So, the cost price of the fan is Rs.5000.

Now, he need to sell this fan in 6% gain.

Selling price = Cost price + 6% of cost price

S.P.=5000+\dfrac{6}{100}\times 5000

S.P.=5000+300

S.P.=5300

Therefore, he must sell it for Rs.5300 to gain 6 percentage.

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