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2 years ago

How many 5-letter words can be made from the letters WASTEFUL if

Mathematics

1 answer:

Irina18 [472]2 years ago

4 0

Answer:

waste

awful

fates

false

feast

sweat

stale

least

flute

flaws

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Arlecino [84]

To make something smaller and easier

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3 years ago

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Complete the square for 3x^2-12x=9

larisa [96]

Answer:

The solutions are -0.65 and 4.65.

Step-by-step explanation:

3x^2 - 12x = 9

Divide both sides by 3

x^2 - 4x = 3

To make a square with "x^2 - 4x", you need to have a "+ 4" after it so it can be simplified as (x-2)^2. So add 4 to both sides.

x^2 - 4x + 4 = 7

(x-2)^2 = 7

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x = 2 (+/-) (square root) of 7.

x = {-0.65, 4.65}

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3 years ago

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How many solutions does this linear system have? y = y equals StartFraction 2 over 3 EndFraction x plus 2.x+ 2 6x – 4y = –10

Ira Lisetskai [31]

Answer:

The system has one solution

Step-by-step explanation:

we have the system of equations

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substitute equation A in equation B

$6x-4(\frac{2}{3}x+2)=-10$

$6x-\frac{8}{3}x-8=-10$

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$18x-8x-24=-30$

Combine like terms

$10x=-30+24$

$10x=-6$

$x=-\frac{6}{10}$

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$y=\frac{2}{3}(-\frac{3}{5})+2$

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$y=\frac{24}{15}$

Simplify

$y=\frac{8}{5}$

The solution of the system is the point $(-\frac{3}{5},\frac{8}{5})$

therefore

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