2 years ago

Yesterday between nooN And midnight the temperature dropped by 29.6 if the temperature was-5.4 at midnight what was it at noon

Mathematics

1 answer:

Deffense [45]2 years ago

3 0

Answer:

24.2

Step-by-step explanation:

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The polynomial equation x cubed + x squared = negative 9 x minus 9 has complex roots plus-or-minus 3 i. What is the other root?

Ymorist [56]

Answer:

-1,3i,-3i

Step-by-step explanation:

X^3+x^2=-9x-9

x^3+x^2+9x+9=0

x^2(x+1)+9(x+1)=0 factorize by taking x+1 common factor

(x+1)(x^2+9)=0

x+1=0 then x=-1

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3 years ago

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Sets<br> Let A = {1, 2, 3, 8} and {x | x is an even whole number less than 9}, find An B <br>

spin [16.1K]

A={1,2,3,8}

B={x|x is an even whole no less than 9}

B={2,4,6,8}

Now

$\\ \sf\longmapsto A\cap B=\{2,8\}$

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2 years ago

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Can someone help me please??

dem82 [27]

Add all the sides together
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Please help if you would like to have brianleist! (No links please!) Thank you! :)

Sidana [21]

The answer is C, one over thirty-two

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2 years ago

a square poster of length 3x is going to have a square painting centered on it. The length of the painting is 2x. the area of th

eduard

One way to solve this is to look at the size of the poster, and then subtract the size of the picture so you have the area that needs to be painted left.

Area of square poster - 3x × 3x = 9x^2
Area of painting - 2x × 2x = 4x^2

9x^2 - 4x^2 = 5x^2

The area is 5x^2

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3 years ago