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4 years ago

15

HELP PLEASE QUICKLY!!!!

1 answer:

solmaris [256]4 years ago

4 0

Hi again!

I think I already answered this question - right ?

Ok whatever - the answer and the steps are still in my head~

x^3 - 4x² + 2x + 10 = x² - 5x - 3
Again, same thing
x^3 - 4x² + 2x + 10 -x² + 5x + 3 = 0
Now factorize
(x + 1)(x² - 6x + 13) = 0
Set factor equal to 0
x + 1 = 0 or x² - 6x + 13 = 0
x = -1

The correct option is : B

A+ Guaranteed!

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Solve the linear equation <br><br>1: 5x+8/9=2x-7/18<br>2: 3x+3/5=6x-2/10

WARRIOR [948]

Answer:x= - 23/54

x= 3/20

Step-by-step explanation:

i hope this helps

5 0

2 years ago

Read 2 more answers

Please I need the correct answer.

Alenkasestr [34]

V1 is equal to V2

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6 0

3 years ago

Iodine-125 has a half-life of about 60 days.

Murljashka [212]

62.5 mg sample will remain after 240 days

Step-by-step explanation:

Given

Half-life = T = 60 days

The formula for calculating the quantity after n half lives is given by:

$N = N_0(\frac{1}{2})^n$

Here

N is the final amount

N_0 is the initial amount

n is the number of half lives passed

The number of half lives are calculated by dividing the time for which the remaining quantity has to be found by half life

The quantity has to be calculated for 240 days so,

$n = \frac{240}{60}\\n = 4$

Given

$N_0 = 1000\ mg$

Putting the values in the formula

$N = 1000 (\frac{1}{2})^4\\=1000 * \frac{1}{16}\\=\frac{1000}{16}\\=62.5\ mg$

Hence,

62.5 mg sample will remain after 240 days

Keywords: Half-life, sample

Learn more about half-life at:

#LearnwithBrainly

3 0

3 years ago

Help me with all of them plzzz eleven<br><br> Points

irina [24]

122 with 58
35 with 145
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5 0

4 years ago

Read 2 more answers

F(x) = x + 2 g(x) = x – 4 (f g)(x) =

Sauron [17]

Answer:

x² - 2x - 8

Step-by-step explanation:

The notation (f·g)(x) means to multiply the two functions. Use the distributive property to simplify.

(f·g)(x) = (x+2)(x-4) = x² + 2x - 4x - 8 = x² - 2x - 8

4 0

3 years ago

Read 2 more answers