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kaheart [24]
3 years ago
8

Help me please i need help with this

Mathematics
1 answer:
solmaris [256]3 years ago
7 0
(2x +y)(5x-y+3)

10x^2 - 2xy + 6x + 5xy - y^2 + 3y

10x^2 -2xy+5xy + 6x - y^2 + 3y
 
10x^2 +3xy + 6x -y^2 +3y        

Looking at the answer boxes the sign looks wrong to me from y^2 ( a negative times a positive is a negative) I may be wrong. 

Anyone else?
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7.
patriot [66]

Answer:

C

Step-by-step explanation:

Square root of 92 is 9.591663047

so round that to 9.59

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3 years ago
2. Stephen Curry's record during the 2017 – 2018 NBA final game is made up of 2-point shots and 3-points.
stiks02 [169]

Answer:

He made 7 3-point shots.

Step-by-step explanation:

x+y=19

2x+3y=45

y=19-x

2x+3*(19-x)=45

2x+57-3x=45

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-x=-12

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3 0
3 years ago
A rhombus is cut along the diagonals to make four triangles. Which three statements are correct for any rhombus? 1) All four tri
Nikolay [14]

Answer:

1). All four triangles are right-angled.

3.) All four triangles are congruent.

4) Area of a rhombus = 4 x area of one triangle.

Step-by-step explanation:

If a rhombus is cut into four triangles using diagonals, the three statements that would apply to any rhombus would be that 'all those four triangles would be right-angled,' 'the triangles would be congruent to one another,' and 'area of one triangle * 4 would be equal to the area of the rhombus.'

As we know, the diagonals bisect one another in a rhombus at 90° and the angles opposite to one another are equal. This <u>proves that all four triangles constructed through the diagonals would be ≅ through SSS congruency and perpendicular to one another because the corresponding edges of the congruent triangles are also ≅</u> . Since the rhombus is divided into four equal parts, the area of one triangle into four would be equals to the area of the rhombus. Thus, <u>options 1, 3, and 4</u> are the correct answers.

8 0
3 years ago
In the equation y = -6x + 2, what is the value of slope?<br> 25 Points!!!!!!!
zepelin [54]

Answer:

-6

Step-by-step explanation:

In y = mx + c,

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y = -6x + 2

m = -6

5 0
3 years ago
Read 2 more answers
Rút gọn √(6-3(√(2+√3)-√(2+√(2+√3)
Anika [276]

Answer:

10

Step-by-step explanation:

not sure please verify

4 0
3 years ago
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