3 years ago

50 POINTS SOLVE !! ::

Mathematics

1 answer:

satela [25.4K]3 years ago

4 0

Answer:

Step-by-step explanation:

<u>k - 4</u> = 3

k/9 = 3(9) + 4

k = 31/9

k = 31/9

<u>8 + b </u> = -5

-4

8 + b = -5 (-4)

8 + b = 20

b = 20 - 8

b = 12

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Dima020 [189]

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Step-by-step explanation:

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3 years ago

Given , which of the following describes the boundary line and shading for the second inequality in the system?

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Answer:

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4 years ago

Find the value of 373 using the identity (x − y)3 = x3 − 3x2y + 3xy2 − y3. Show all work.

Paladinen [302]

Answer:

$37^3 = 50653$

Step-by-step explanation:

Given

$(x - y)^3 = x^3 - 3x^2y + 3xy^2 - y^3$

Required

Find $37^3$

Express 37 as 40 - 3

So, we have:

$37^3 = (40 - 3)^3$

Compare to $(x -y)^3$

$x = 40\ and\ y = 3$

Substitute 40 for x and 3 for y in $(x - y)^3 = x^3 - 3x^2y + 3xy^2 - y^3$

$(40 - 3)^3 = 40^3 - 3*40^2*3 + 3*40*3^2 - 3^3$

Evaluate all exponents

$(40 - 3)^3 = 64000 - 3*1600*3 + 3*40*9 - 27$

Evaluate all products

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$(40 - 3)^3 = 50653$

Hence:

$37^3 = 50653$

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3 years ago

What would the temperature be on an autumn day?

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Whats the answer to 3y+-4=9y-8

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3 years ago

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