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Rudik [331]
3 years ago
13

Find the sum and express it in simplest form. (-5y^3 - 7y) + (7y^3 + 8y +9)

Mathematics
1 answer:
Tema [17]3 years ago
6 0
<span>(-5y^3 - 7y) + (7y^3 + 8y +9)
</span>

-5y^3+7y^3-7y+8y+9   <---- Group like terms
 
-5y^3+7y^3+y+9  <---- Add similar elements 

Answer: 2y^3+y+9

Read it carefully as it may look confusing with the symbols. 
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Answer both questions please!!! I need help....
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Given rectangle QUAD, If DU = 5x - 4 and QP = 2x + 7, then find the length of DU.
ira [324]

Answer:

DU = 86

Step-by-step explanation:

Properties of a rectangle,

- Opposite sides are equal in measure.

- Diagonals of a rectangle are equal.

- Diagonals bisect each other.

In the given rectangle QUAD,

Diagonals AQ and DU bisect each other at P.

AQ = DU

2(QP) = DU [Since, AQ = 2(PQ)]

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DU = 5(18) - 4

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Therefore, measure of DU = 86 units

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2 years ago
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