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Hitman42 [59]
2 years ago
8

what is the simplified expression of the following polynomial: xy4 + 5y7 - (6xy + 7y7) - x8y2 + (-3xy4) Step by Step

Mathematics
1 answer:
Gnoma [55]2 years ago
5 0

Answer:

  -x^8y^2 -2y^7 -2xy^4 -6xy

Step-by-step explanation:

Eliminate parentheses.

  xy^4 + 5y^7 - 6xy - 7y^7 - x^8y^2 -3xy^4

Arrange in descending degree order, group like terms.

  -x^8y^2 +(5y^7 -7y^7) +(xy^4 -3xy^4) -6xy

Combine like terms.

  -x^8y^2 -2y^7 -2xy^4 -6xy

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mario62 [17]

Answer:

523.33 cm³

Step-by-step explanation:

Formula of volume of sphere

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The volume of the sphere

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= \frac{1570}{3}

= 523.3333333...

= 523.33 cm³ (rounded to the nearest hundredth)

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2 years ago
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bixtya [17]
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8 0
2 years ago
Jane's salary is increased by 2% to $30396. How much was her salary before the rise?
harina [27]
_award brainliest if helped!

so 102% = 30396
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6 0
3 years ago
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You deposit $300 in a savings account. The account earns 10% simple interest per year.
Phantasy [73]

Answer:

Step-by-step explanation:

The interest after 8 years is $240

The balance after 8 years is $540

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3 0
3 years ago
Find the value of x in the triangle listed here. If you could show me the steps, I would appreciate it.
-Dominant- [34]

Answer:

71°

Step-by-step explanation:

The triangle shown is an isosceles triangle. Isosceles triangles have two equal sides and two equal angles. When all 3 angles are added, it should have a sum of 180°. The tip of the triangle is the part of the triangle with the smallest degree/angle. So the two remaining angles are the same amount.

180°=38°+x+?

180°=38°+71°+71°

Both missing angles are the same degree, and when both are added to 38, it has a sum of 180. x is equal to 71°.

7 0
2 years ago
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