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Lana71 [14]
3 years ago
6

Use the identity for the difference of two squares, a^2-b^2=(a-b)(a+b), and the imaginary number i to create an identity for the

sum of two squares. Show that the identity is true.
Mathematics
1 answer:
Sphinxa [80]3 years ago
6 0
Put me as brainliest ive tried i cant figure it out plzz

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Simplify:<br>{15×115-(-3)}(4-4)÷3{5+(-3)×(-6)}​
Maurinko [17]
  • (15×115-(-3)}(4-4)÷3{5+(-3)×(-6)}
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5 0
2 years ago
Read 2 more answers
Which ten thousand does 117,290 round to
Leni [432]

Answer:

120,000

Step-by-step explanation:

because seven in greater than 5 so it would round up

3 0
2 years ago
7metros mas 9.40 metros​
Tresset [83]

Answer:

I don't know

Step-by-step explanation:

4 0
3 years ago
The table shows the price for different numbers of board games:
zlopas [31]

Answer:

We conclude that the price is 3.5 times the number of board games.

Hence, option B is true.

Step-by-step explanation:

We know that when y varies directly with x, the equation is

y ∝ x

y = kx

k = y/x

where 'k' is called the proportionality constant.

From the table,

For the point (2, 7)

k = y/x

  = 7/2

  = 3.5

For the point (4, 14)

k = y/x

   = 14 / 4

   = 7/2

    = 3.5

For the point (5, 17.50)

k  = y/x

   = 17.5 / 5

   = 3.5

For the point (9, 31.50)

k  = y/x

   = 31.50 / 9

   = 3.5

From the above calculations, we computed that the value of the proportionality constant remains the same.

Thus, the table of numbers represents a proportional relationship.

Therefore, the equation becomes

y = kx

The price of 2 board game

y = 3.5 (2)

  = 7

The price of 4 board game

y = 3.5 (4)

  = 14

Therefore, we conclude that the price is 3.5 times the number of board games.

Hence, option B is true.

6 0
2 years ago
Find the value of y so<br> that (-2,y) satisfies y =-7x?
Anit [1.1K]

Answer:

y=14

Step-by-step explanation:

plug in -2 in the place of x

y=-7(-2)    y=14

6 0
3 years ago
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