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olga_2 [115]
3 years ago
11

When a drawing of a circle made in the center of a piece of paper with a black marker gets wet, the marker bleeds, and as the wa

ter moves through the paper the ink separates into several colors. What method of separation does this describe
Mathematics
2 answers:
Ludmilka [50]3 years ago
8 0

Answer:

The method of separation is chromatography.

Step-by-step explanation:

It is given that a drawing of a circle made in the center of a piece of paper with a black marker gets wet, the marker bleeds, and as the water moves through the paper the ink separates into several colors. Here, the method of  separation used is chromatography. It is a laboratory technique for the separation of a mixture. When water or dye passes through a medium and changes color, then that means chromatography is used there.

arlik [135]3 years ago
5 0

Answer:

D. chromatography

Step-by-step explanation:

edge 2020/21

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Free_Kalibri [48]

Answer:

The temperature decreased by 32 degrees.

Step-by-step explanation:

4 0
3 years ago
Write the expression 12 x 4^2 in words
lawyer [7]

Answer and Step-by-step explanation:

Twelve times four squared.

This is how you would write the expression in word format.

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7 0
3 years ago
Multiply: (3x + 2)(4x - 7)
svetoff [14.1K]
When you are doing distribution with this problem you are going to get your answer of....
D) 12x^2 - 13x - 14

Steps:
Simplify...
<span>(3x + 2)(4x - 7)
= (3x + 2) (4x + -7)
= (3x)(4x) + (3x)(-7) + (2)(4x) + (2)(-7)

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5 0
4 years ago
What are her monthly payments
borishaifa [10]

The interest she is pay total is $2340.822 when Angela's bank granted her a 6380 loan with a 3 year add-on interest period. 12.23% is the interest rate per year.

Given that,

For the purpose of buying new equipment for her business of antique restoration, Angela's bank granted her a 6380 loan with a 3 year add-on interest period. 12.23% is the interest rate per year.

We have to find will she pay interest at all.

We know that,

i=p×r×t

Here,

i is interest.

p is principal amount.

r is rate of interest

t is time.

So, p is $6380

r is 12.23%

t is 3 years

So,

i= 6380×0.1223×3

i= $2340.822

Therefore, the interest she is pay total is $2340.822 when Angela's bank granted her a 6380 loan with a 3 year add-on interest period. 12.23% is the interest rate per year.

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4 0
1 year ago
Differential Equations
SashulF [63]

Answer:

b=\pm2\sqrt{2}

Step-by-step explanation:

For the spring mass system

my"+by'+ky=0

The system is said to be critically damped if b^2-4mk=0

Here b is coefficient of friction

m is the mass of system

And k is spring constant

We have given m = 2 kg , k =1

So b^2-4\times 2\times 1=0

b^2=8

b=\pm2\sqrt{2}

So the coefficient of friction is \pm2\sqrt{2}

7 0
3 years ago
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