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Mashutka [201]
3 years ago
14

9 - x2 + 2xy - y2 Factorise

Mathematics
1 answer:
LenaWriter [7]3 years ago
5 0

9-x.2+2xy-y.2

9-2x+2xy-2y

-2x+2xy-2y+9

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Juantia will make cookies and the recipce calls for 2/3 cup of flour. She wants to make this recipe four times a month How mcuh
vesna_86 [32]

Answer:

8/3 or 6 2/3 cup

Step-by-step explanation:

2/3 times 4/1 = 8/3 or 6 2/3

3 0
4 years ago
The lines a and b intersect at point C.<br><br> What is the value of y?
Amanda [17]

Using the definition of vertical angles, the value of z is: 15.

<h3>Vertical Angles Pair</h3>

The two pairs of opposite angles formed when two straight lines intersect are called vertical angles, and are therefore congruent to each other.

Thus:

2z + 10 = 40

2z = 40 - 10

2z = 30

z = 30/2

z = 15

Therefore, using the definition of vertical angles, the value of z is: 15.

Learn more about vertical angles on:

brainly.com/question/1673457

7 0
3 years ago
Read 2 more answers
I really need help with this<br><br> Can someone help me thx<br><br><br> Plsssssss
omeli [17]

Answer:

10x^2 - 4x

Step-by-step explanation:

5x - 2 times 2x will equal the area of 'Potatoes.'

5x times 2x is 10x^2.

2 times 2x is 4x.

I cannot provide an exact value because x hasn't been identified.

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3 0
3 years ago
Lines k and l are parallel. When lines k and l are cut by the transversals below, an isosceles triangle is formed.
Slav-nsk [51]
The angle to the left of angle 1 is 70, so angle 1 is equal to 180 - 70 - 70 which is 40,
5 0
3 years ago
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Use IDEAL to solve the following problems (WORTH 50 POINTS)
Dima020 [189]
So pythagrorean theorem is the ideal way and easiest way to solve this

a^2+b^2=c^2

8.5^2+11^2=x^2
72.25+121=193.25
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9.5^2+15^2=x^2
90.25+225=315.25
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8 0
4 years ago
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