A constant head permeability test is performed on a soil that is 2 cm x 2 cm square and 2.5 cm long. The head difference applied during the test is 18 cm, and 5 cm3is collected over a time of 100 sec. a) Compute the permeability based on these test conditions and results b) A falling head test is to be done on the same soil specimen in teh same time (t1 - t2

Answers

Answer 1

Answer:A

Step-by-step explanation:por que se calcula correctamente


Related Questions

Hansen and his good buddy Xavier are both mechanics at a shop that does oil changes. They are in a friendly competition to see who can complete the most oil changes in one day. Hansen has already finished 7 oil changes today, and can complete more at a rate of 2 oil changes per hour. Xavier just came on shift, and can finish 3 oil changes every hour. Sometime during the day, the friends will be tied, with the same number of oil changes completed. How many oil changes will Hansen and Xavier each have done? How long will that take?

Answers

Least Common Multiple (LCM)
2: ( already starts at 7)
9, 11, 13, 15, 17, 19, 21
3: 7th hour
3, 6, 9, 12, 15, 18, 21
7th hour

At the 7th hour, they both have done 21 oil changes.

f(x) = 3x + 6 please help quickly!!!!!!!

Answers

Given the function, f(x) = 3x + 6, we can solve for f(a), f(a + h) and [tex]\frac{(f(a + h) - f(a)) }{h}[/tex] by substituting their values into f(x) = 3x + 6. We will have the following:

[tex]\mathbf{f(a) = 3a + 6}\\\\\mathbf{f(a + h) = 3a + 3h + 6}\\\\\mathbf{\frac{(f(a + h) - f(a)) }{h} = 6}[/tex]

Given:

f(x) = 3x + 6

We are told to find:

f(a)f(a + h), and[tex]\frac{(f(a + h) - f(a)) }{h}[/tex]

1. Find f(a):

Substitute x = a into f(x) = 3x + 6

f(a) = 3(a) + 6

f(a) = 3a + 6

2. Find f(a + h):

Substitute x = a + h into f(x) = 3x + 6

f(a + h) = 3(a + h) + 6

f(a + h) = 3a + 3h + 6

3. Find [tex]\frac{(f(a + h) - f(a)) }{h}[/tex]:

Plug in the values of f(a + h) and f(a) into [tex]\frac{(f(a + h) - f(a)) }{h}[/tex]

Thus:

[tex]\frac{((3a + 3h + 6) - (3a + 6)) }{h}\\\\\frac{(3a + 3h + 6 - 3a - 6) }{h}\\\\[/tex]

Add like terms

[tex]\frac{(3a - 3a + 3h + 6 - 6) }{h}\\\\= \frac{3h }{h}\\\\\mathbf{= 3}[/tex]

Therefore, given the function, f(x) = 3x + 6, we can solve for f(a), f(a + h) and [tex]\frac{(f(a + h) - f(a)) }{h}[/tex] by substituting their values into f(x) = 3x + 6. We will have the following:

[tex]\mathbf{f(a) = 3a + 6}\\\\\mathbf{f(a + h) = 3a + 3h + 6}\\\\\mathbf{\frac{(f(a + h) - f(a)) }{h} = 6}[/tex]

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https://brainly.com/question/8161429

_+_+_+_+_+_=300,684 how could I do this with 6 digits to equal 300,684 .?

Answers

Answer:

Number 300,684 spell , write in words: three hundred thousand, six hundred and eighty-four . Ordinal number 300684th is said and write: three hundred thousand, six hundred and eighty-fourth. Color #300684. The meaning of number 300684 in Maths: Is Prime? Factorization and dividers. The square root and cube root of 300684. The meaning in computer science, numerology, codes and images, writing and naming in other languages, other interesting facts.

hop it helps:) :(

-14 + 6x = 1 - 3x what is x​

Answers

Answer:

X = 5/3

Step-by-step explanation:

-14 + 6x = 1 - 3x

-14 + 9x = 1

9x = 15

x = 5/3

Hope this helps! Pls give brainliest!

Answer:

[tex]x = 1\frac{2}{3} [/tex]

Step-by-step explanation:

To find:

Value of x

Equation:

-14 + 6x = 1 - 3x

=> 6x + 3x = 1 + 14

=> 9x = 15

[tex] = > x = \frac{15}{9} [/tex]

[tex] = > x = \frac{5}{3} [/tex]

[tex] = > x = 1 \frac{2}{3} (ans)[/tex]

12. Determine the slope of the line having the equation 2x + y = 12
a. 2
b. -2
c. ½
d. -½​

Answers

Answer:

b. -2

Step-by-step explanation:

Note the slope-intercept form: y = mx + b

Note that:

y = (x , y)

m = slope

x = (x , y)

b = y-intercept

First, isolate the variable, y. Note the equal sign, what you do to one side, you do to the other. Subtract 2x from both sides of the equation:

2x (-2x) + y = (-2x) + 12

y = -2x + 12

Remember, m is the variable for the term that stands for the slope (directly next to the x variable). In this case, your answer will be -2

b. -2 is your answer.

~

Answer:

b. -2

Step-by-step explanation:

2x+y=12

add -2x to both sides

y = -2x + 12

this is in slope intercept form y = mx + b

m meaning the slope

in this case the slope is -2

the answer will be b. -2

Can someone please help me with this problem

Answers

Answer:

A is the right one

Step-by-step explanation:

if not I'm sorry I'm here to help

SOMEONE HELP ME PLEASE

Answers

Step-by-step explanation:

height is find by Pythagoras theorem.

h=4 .

h²=5²-3² = 16

h=4.

area = bh = 4×10 = 40 units .

hope this helps you.

PLEASE HELP ITS MATH THANK YOUUUU

Answers

Answer:

3 centimeters : 100 centimeters

Step-by-step explanation:

The scale is 6 centimeters = 2 meters or 6 centimeters : 2 meters

2 meters = 200 centimeters

Both of them are multiples of 2, so simplify:

6/2 centimeters = 200/2 meters

3 centimeters : 1 meter, or 3 centimeters : 100 centimeters

-Chetan K

A supermarket advertises a new product by offering samples to customers. The table shows the number of samples distributed each hour. At what rate does the supermarket distributes samples?​

Answers

Answer:

38 samples an hour, next time taken the first two numbers in the table and divide the one on the right by the one on the left

Two particles are projected simultaneously towards each other from opposite ends of a straight horizontal tube. One particle travels 97 cm in the 1st 2 seconds, 93 cm in next 2 seconds , 89 cm in another next 2 seconds, etc. The other particle travels 49 cm in the 1st 2 seconds, 47 cm in the next 2 seconds , 45 cm in another next 2 seconds, etc. Find how long it takes for the particles to meet and hence, determine the distances travelled by each particle.

Answers

This shows that it will take the particle 23 secs to meet.

The distance travelled by each particle is 50cm

If two particles are projected simultaneously towards each other from opposite ends of a straight horizontal tube,

The first particle distances are 97cm, 93cm, 89cm... every 2secs

This form an arithmetic sequence and the nth term is expressed as:

Tn = a  + (n - 1)d

a is the first term = 97

d is the common difference = 4

Substitute

Tn = 97+(n - 1)(4)

Tn = 97 + 4n -4

Tn  = 4n  + 93

Similarly for the distances 49 cm, 47 cm, 45cm .....

This also forms an arithmetic sequence and the nth term is expressed as:

Tn = a  + (n - 1)d

a is the first term = 49

d is the common difference = 2

Substitute

Tn = 49+(n - 1)(2)

Tn = 49 + 2n -2

Tn  = 2n  + 47

For the particles to meet, this means that 4n  + 93 = 2n + 47

4n - 2n = 47 - 93

2n = -46

n = -23

This shows that it will take the particle 23 secs to meet.

To get the distance travelled by each particle

Tn  = 4n  + 93

T2 = 4(2) + 93

T2 = 101

For the other sequence;

Tn  = 2n  + 47

T2  = 2(2)  + 47

T2 = 51

Taking the difference;

D = 101 - 51 = 50cm

Hence the distance travelled by each particle is 50cm

Learn more here: https://brainly.com/question/13989292

.Factor 20x2 + 68x - 160

Answers

Answer:

4(5x-8) (x+5)

Step-by-step explanation:

4(5x^2+17x-40)

4(5x-8) (x+5)

Evaluate the expression 6^2-(8–4^2+7

Answers

Answer

11

you can confirm from by yourself or tell

6²-(8-4)²+7=?=6²-(4)²+7=36-16+7=20+7=27

please mark this answer as brainlist

Multiply. Write your answer as a fraction in simplest form.
8
X
9

Answers

Answer:

40/54 = 20/27

Step-by-step explanation:

The temperature at 10:00 a.m was -3 and increased 2.25 each hour for the next 5 hours.What was the temperature at 3:00pm?

Answers

9514 1404 393

Answer:

  8.25°

Step-by-step explanation:

The increase over 5 hours was ...

  (5 h) × (2.25 °/h) = 11.25°

When that is added to the starting value, the ending value is ...

  -3° +11.25° = 8.25°

The temperature at 3:00 pm was 8.25°.

Select another way to show 25 times 18

Answers

These are just some examples:
25 x 18
18 x 25

Is this last one correct?

Answers

Answer:

yes

Step-by-step explanation:

2 1/4 is the most ofen used.

1 1/2 is the least amount of glue needed

subtract it and you get 3/4

Answer:

yes it is

Step-by-step explanation:

Two particles are projected simultaneously towards each other from opposite ends of a straight horizontal tube. One particle travels 97 cm in the 1st 2 seconds, 93 cm in next 2 seconds , 89 cm in another next 2 seconds, etc. The other particle travels 49 cm in the 1st 2 seconds, 47 cm in the next 2 seconds , 45 cm in another next 2 seconds, etc. Find how long it takes for the particles to meet and hence, determine the distances travelled by each particle.

Answers

This shows that it will take the particle 23 secs to meet.

The distance travelled by each particle is 50cm

If two particles are projected simultaneously towards each other from opposite ends of a straight horizontal tube,

The first particle distances are 97cm, 93cm, 89cm... every 2secs

This form an arithmetic sequence and the nth term is expressed as:

Tn = a  + (n - 1)d

a is the first term = 97

d is the common difference = 4

Substitute

Tn = 97+(n - 1)(4)

Tn = 97 + 4n -4

Tn  = 4n  + 93

Similarly for the distances 49 cm, 47 cm, 45cm .....

This also forms an arithmetic sequence and the nth term is expressed as:

Tn = a  + (n - 1)d

a is the first term = 49

d is the common difference = 2

Substitute

Tn = 49+(n - 1)(2)

Tn = 49 + 2n -2

Tn  = 2n  + 47

For the particles to meet, this means that 4n  + 93 = 2n + 47

4n - 2n = 47 - 93

2n = -46

n = -23

This shows that it will take the particle 23 secs to meet.

To get the distance travelled by each particle

Tn  = 4n  + 93

T2 = 4(2) + 93

T2 = 101

For the other sequence;

Tn  = 2n  + 47

T2  = 2(2)  + 47

T2 = 51

Taking the difference;

D = 101 - 51 = 50cm

Hence the distance travelled by each particle is 50cm

Learn more here: https://brainly.com/question/13989292

144 = -12 (x + 5)

find x

Show work.

Answers

Answer:

-17 =x

Step-by-step explanation:

144 = -12 (x + 5)

Divide each side by -12

144/-12 = -12 (x + 5)/-12

-12 = x+5

Subtract 5 from each side

-12-5 =x+5-5

-17 =x

Answer:

[tex]144=-12x-60\\12x=-204\\x=-17[/tex]

Step-by-step explanation:

Use the substitution method to solve the system.
2x + 8y = 4
x = -4y - 2

Answers

Answer:

no solution

Step-by-step explanation:

2x + 8y = 4

x = -4y - 2

Divide both sides of the first equation by 2.

x + 4y = 2

x = -4y - 2

Substitute -4y - 2 for x in the first equation.

-4y - 2 + 4y = 2

0 - 2 = 2

0 = 4

Since after doing legal steps, we get a false statement, 0 = 4, that means there is no solution.

811570 rounded to nearest hundred thousand

Answers

Answer:

800,000

Step-by-step explanation:

8 is in the hundred thousands, 1 is in the ten thousands, 1 is in the thousands, 5 is in the hundreds, 7 is in the tens, 0 is in the ones place

It rounds down as its nowhere near 900,000 which changes all its digits.

Erin ran 5 km in 25 minutes. What is her speed in km per minute? (Answer as a decimal)​

Answers

Answer:

what what what what what what what what

Hey , help maybe please thanks<3?

Answers

Answer:

48 fluid ounces= 3 pints

Answer:

3 pints

Step-by-step explanation:

[tex]48 \: fl \: oz \: \div \frac{8 \: fl \: oz}{cup} = 6 \: cups[/tex]

[tex]6 \: cups \: \div \frac{2 \: cups}{pint} = 3 \: pints[/tex]

What is the product of 246 and 176?​

Answers

Answer:

43296

Step-by-step explanation:

Answer: 43296

Step-by-step explanation:

If you multiply 246 and 176, you get 43296.

(0,3) and (2,4) are on the line

Answers

Slope-intercept form is y = mx + b

The slope can be found by dividing y(2) - y(1) by x(2) - x(1).

4 - 3 = 1
2 - 0 = 2
m = 1/2

Since the first point has an x-coordinate of 0, the y-coordinate is the y-intercept of the line.

b = 3

Equation: y = 1/2x + 3

2.Pleas can someone answer!

Answers

Answer: A, A, C

Step-by-step explanation:

Educated Guess because none of them are going to be zero so it's either A or C but the point has a negative y so to plug it all in all of them have to be negative ex. -1 + -1 + -1 =-3

the x is -1 so both have to be negative in order to get -3

help me quick please --4x-7-3x+4=25

Answers

Answer:

x = 32

Step-by-step explanation:

4x - 7 - 3x + 4 =25

=> 4x - 3x = 25 + 7

=> x = 32 (Ans)

The other dude is correct give him branliest

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

just write like the (this is a example) 2x+6=5x

just put m instead of x but just make it make sence

Brianna works for a large fast food chain recording and publishing training videos for employees. Which job title would Brianna MOST likely have?

Answers

Answer:

Multimedia Specialist

Step-by-step explanation:  

Had a question like this before

Let two cards be delt successively without replacement from a standard 52 card deck find the probability of the event. the first card is a ten and the second is a face card.
HELP PLEASE!!!!

Answers

Answer:

well for the 10 it is a 4/52 chance and for face cards, 16/52

Step-by-step explanation:

2) A pool is being filled with a hose. The equation y=12x represents the relationship between
the number of gallons of water in the pool (y) and the number of minutes the water runs (X). If
this relationship is represented on a graph, which ordered pair would not lie on the line?
NEED HELP ASAP PLS AND THANK YOU SO MUCH

Answers

Answer:

d) (18, 206)

Step-by-step explanation:

According to the given relationship, we have:

y/x = 12

Use the ordered pairs to find same ratio and compare:

a) 96/8 = 12b) 120/10 = 12c) 180/15 = 12d) 206/18 = 11.44 ≠ 12
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