1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vekshin1
3 years ago
8

How to find root hair

Mathematics
1 answer:
dimulka [17.4K]3 years ago
6 0
I'll proceed by evaluating total length and surface area by scanned images. For measurements, I suggest to use winrhizo or any similar software. In this case the most important thing to think about is to use the appropiate acquisition parameters, I mean, to set a good resolution during scanning. Pixels of the aquired image should be smaller than root hairs diameter. Therefore, let me try to suggest you a good acquisition resolution. Making a quick research, it seems that hair root diameters range between 0,012 and 0,017 mm, so I suggest a resolution that will give a pixel dimension of 0,002 mm. Root hair diameters should be composed by 6-8 pixels, that is enough for winrhizo measurements. Resolution is measured in dpi, so in "dots/pixel per inch". A inch is 25,4 mm. We need pixels with a diameter of 0,002 mm, so in 25,4 mm we found 12700 pixels. That means 12700 dpi. It's a very high resolution, you need a good scanner and much space in your computer.
You might be interested in
If n erasers have a weight of 80 grams, what is the total weight of 50 erasers?
Black_prince [1.1K]

Answer:

The\ weight\ of\ the\ 50\ erasers\ be\ \frac{4000}{n}\ grams.

Step-by-step explanation:

As given

if n erasers have a weight of 80 grams .

I.e

n erasera =  80 grams.

1 erasers weight .

1\ erasers\ weight = \frac{80}{n}

Now find out the weight of the 50 erasers.

Weight\ of\ 50\ erasers = \frac{50\times 80}{n}\ grams

Simplify the above

Weight\ of\ 50\ erasers = \frac{4000}{n}\ grams

Therefore\ the\ weight\ of\ the\ 50\ erasers\ be\ \frac{4000}{n}\ grams.

6 0
3 years ago
Read 2 more answers
Use the Multiplication Property of Equality to complete the following statement: If , 4x divided by 2 = 4
vovangra [49]

Answer:

then x = 2.

Step-by-step explanation:

4 multiplied by 2 = 8

8 divided by 2 equals 4

Putting it together:

4(2)/2=4

4 0
3 years ago
Read 2 more answers
50 percent of 620 written as a percent
SSSSS [86.1K]
50% of 620 is half of 620.

Writing 50% of 620 is 50%. (Or 310 if you wanted to know half of 620)
5 0
3 years ago
What is an equation of the line that passes through the points (0, -4) and (-4, 6)?
olganol [36]

Answer:

The equation of the line is.

y=-\frac{5}{2}x-4

Step-by-step explanation:

Given:

The given points are (0, -4) and (-4, 6)

The equation of the line passing through the points (x_{1},y_{1}) and (x_{2},y_{2}) is.

\frac{x-x_{1}}{x_{2}-x_{1}}=\frac{y-y_{1}}{y_{2}-y_{1}}

Thus, the equation of the line that passes through the points (0, -4) and (-4, 6) is

\frac{x-0}{(-4)-0}=\frac{y-(-4)}{6-(-4)}

\frac{x}{-4}=\frac{y+4}{6+4}

-\frac{x}{4}=\frac{y+4}{10}

-\frac{10x}{4}=y+4

-10x=4(y+4)

-10x=4y+16

4y=-10x-16

The above equation is divided by 2 both sides.

2y=-5x-8

y=-\frac{5}{2}x-4

Therefore, the equation of the line that passes through the points (0, -4) and (-4, 6) is y=-\frac{5}{2}x-4

8 0
2 years ago
What is the length of the hypotenuse
podryga [215]
Pythagoras’ Theorem = a^2+b^2=c^2

c^2= 5^2+12^2
=25+144
=169

c= sqrt of 169
c=13

Hypotenuse=13cm
7 0
3 years ago
Read 2 more answers
Other questions:
  • What quadrant 11,-5 is in??
    14·2 answers
  • Is this proportional
    15·2 answers
  • Solve for<br> 16 – 2t = t +9
    5·2 answers
  • The values for three sets of data are shown below. Data Data Set Values 1 42, 48, 50, 88, 49 2 63, 29, 35, 28, 30 3 2, 5, 3, 8 W
    13·2 answers
  • I need help with this question on my homework, please help me.
    11·1 answer
  • Solve the system of equations by graphing. Check your solution.<br><br> 5x+y=14<br> 2x-y=7
    11·1 answer
  • The tip speed ratio of a turbine is the ratio R = T/W, where T is the speed of the tip of a blade and W is the speed of the wind
    11·1 answer
  • What is the Volume of this Cube?
    10·2 answers
  • Someone help me with these math questions
    6·2 answers
  • Taria has 14 pencils, Ted has 9 pencils, Tom has 12
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!