why is earth known as diatomaceous Earth​???
From biology

Answers

Answer 1

Answer:

Diatomaceous earth is made from the fossilized remains of tiny, aquatic organisms called diatoms. Their skeletons are made of a natural substance called silica. Over a long period of time, diatoms accumulated in the sediment of rivers, streams, lakes, and oceans. Today, silica deposits are mined from these areas.


Related Questions

how much ₹ each will get if 242.46₹ is distributed equally among the students​

Answers

Complete Question:

How much ₹ will each get if 242.46₹ is distributed equally among the 6 students​

Answer:

Each of the 6 students will get ₹40.41

Step-by-step explanation:

Given

[tex]Amount = 242.46[/tex]

[tex]Students = 6[/tex]

Required

Determine how much each student gets

To do this, we simply divide the total amount by the number of students

i.e.

[tex]Each\ Students = \frac{Amount}{Number\ Students}[/tex]

[tex]Each\ Students = \frac{242.46}{6}[/tex]

[tex]Each\ Student = 40.41[/tex]

Hence, each of the 6 students will get ₹40.41

Household incomes are normally distributed with a mean of $47,500 and a standard deviation of $12,500. What is the probability of having incomes of $60,000
or more?
a) 2.50%
O b) 5.0096
C) 15.87%
od) 7.8096

Answers

Answer:

Option C: 15.87 is the correct answer

Step-by-step explanation:

Given

Mean = $47500

SD = $12500

We have to find the probability of having $60000 or more

So,

x = $60000

The z-score will be:

[tex]z-score = z = \frac{x-mean}{SD}\\z = \frac{60000-47500}{12500}\\= \frac{12500}{12500}\\= 1[/tex]

Looking in the z-score table, we get

P(Z<60000) = 0.8413

In order to find the probability P(Z>60000) => 1-P(Z<60000)

= 1-0.8413

=0.1587

Converting into percentage: 0.1587*100 = 15.87%

Hence,

Option C: 15.87 is the correct answer

4.3.AP-10
Question Help
On a team, 7 girls and 5 boys scored a total of 91 points. The difference between the number of points scored by the 7 girls and the number of points scored by the
5 boys is 21. Each girl scored the same number of points and each boy scored the same number of points. Find the number of points scored by each girl and each
boy

Answers

Answer:

u want step by step?

Step-by-step explanation:

What is the greatest possible error if Irina measured the weight of her dog as 13 pounds?

Answers

Answer:

0.5

Step-by-step explanation:

Given that:

Irina measured the weight of her dog to be 13 pounds.

The greatest possible error that could have to occur will be the maximum error.

Let assume that the 13th value obtained was rounded between the range of 12.5 → 13.49 to 13 pounds

Then;

The greatest possible error that could have to occur = 13.0 - 12.5 pounds

The greatest possible error that could have to occur = 0.5 pounds

Answer:

0.5

Step-by-step explanation:

EDGE 2020 Unit Test

The following statements as true or false.


a. m23 + m25 = 180

b. m22 + m26 = 180

C. m28 = m_1
Which ones are true and false plzzzzz this is urgent

Answers

Answer:

True

False

True

Step-by-step explanation:

Interior angles are supplementary

Corresponding angles makes mangle2 and mangle6 the same deg

mangle1 = mangle5 (corresponding angles)

mangle5 = mangle8 (vertically opposite angles)

What are the partial products that result from multiplying 17*32?

Answers

Answer:

544

Step-by-step explanation:

A quadratic function y=f(x)y=f(x) is plotted on a graph and the vertex of the resulting parabola is (-4, -5)(−4,−5). What is the vertex of the function defined as g(x)=f(x+2)+3g(x)=f(x+2)+3?

Answers

Answer:

The vertex of the function g(x) = f(x + 2) + 3 is (-6, -2)

Step-by-step explanation:

If the graph of the function f(x) is translated h units to the left, then its image g(x) = f(x + h)If the graph of the function f(x) is translated k units up, then its image g(x) = f(x) + k

Let us use these facts above to solve the question

∵ The quadratic function f(x) = y has a vertex point (-4, -5)

g(x) = f(x + 2) + 3

→ By using the two facts above

∴ f(x) is translated 2 units to the left

∴ f(x) is translated 3 units up

→ That means the vertex point must move 2 units left and 3 units up

∵ The rule of translation is T (x, y) → (x - 2, y + 3)

∵ The coordinates of the vertex point of f(x) are (-4, -5)

∴ Its image is (-4 - 2, -5 + 3)

∴ Its image is (-6, -2)

The vertex of the function g(x) = f(x + 2) + 3 is (-6, -2)

your class is having a car wash for a fundraiser. it costs $27.95 for supplies. your class charges $5 per car. write an expression for the profit of the car. find the profit if the class washes 34 cars.​

Answers

Equation y = 5x - 27.95
Plug in 34 for x
5(34) - 27.95
170 - 27.95 = $142.05

Answer:

5x-27.95=profit

5(34)-27.95

170-27.95

$142.05

-3 -2e -7 = 10
e =

Solve for e

Answers

Answer:e=-10

Step-by-step explanation:

-2e-7=13

-2e=20

e=-10

c - 3/4 = 1/8
Please answer

Answers

Answer:

The answer is 7/8.

Step-by-step explanation:

to get the answer you must use inverse operation so 3/4 + 1/8 = 0.875 or 7/8.

If this helped I would appreciate it if you marked me Brainliest. thank you and have a nice day!

Answer:

c = 7/8

Step-by-step explanation:

c - 3/4 = 1/8

First I will make sure that they all have the same denominator.

[tex]\frac{3}{4} * 2= \frac{6}{8}[/tex]

Our new equation will look like:

c - 6/8 = 1/8

Now we will add 6/8 to both sides.

c = 1/8 + 6/8

c = 7/8

Our final answer is:

c = 7/8

I really need help can someone please understand

Answers

sure what’s the problem

Jan ran for 1 hour and 15 minutes. If Jan can run a mile in 7.5 minutes, how many miles did she run? There are 60 minutes in an hour

Answers

Answer:

10 miles

Step-by-step

Ben’s favorite deli says the average serving time is 12 minutes. Ben notices that the wait time at the deli varies at different times of day, before and after noon. His observations when the wait time is as advertised can be represented by the equation 2|x − 2| − 12 = 0. Solve for the times when the serving time is as advertised, relative to noon. Group of answer choices (THERES ALOT OF ANSWERS BE PREPARED) SELECT ALL THE ANSWER CHOICES.


4pm,

8pm,

9am,

3pm,

noon,

11am,

6pm,

9pm,

7am,

1pm,

2pm,

5pm,

10pm,

10am,

8am,

7pm,

6am,

Answers

Answer:

8 pm and 8 am

Step-by-step explanation:

Let us solve the equation

[tex]2|(x-2)|-12=0[/tex]

There is a modulus in the equation this means that one value of the modulus will be positive and the other will be negative

Let us solve for the positive first

[tex]2(x-2)-12=0\\\Rightarrow 2x-4-12=0\\\Rightarrow x=\dfrac{16}{2}\\\Rightarrow x=8[/tex]

Now we add this value with 12 noon

So

[tex]12+8=8\ \text{pm}[/tex]

Let us solve for the negative

[tex]2(-(x-2))-12=0\\\Rightarrow 2(2-x)-12=0\\\Rightarrow 4-2x-12=0\\\Rightarrow x=-\dfrac{8}{2}\\\Rightarrow x=-4[/tex]

So

[tex]12-4=8\ \text{am}[/tex]

The times when the serving time is as advertised is 8 pm and 8 am.

what are the terms in the expression 2x-4y+8?
A.) 8
B.) 2x and 4y
C.) 2x, -4y, and 8
D.) 2, 4, and 8

P.S PLS HELP DUE TODAY!!!​

Answers

I’m pretty sure is 8, because there are no like terms in there so I’m sorry if I’m wrong.

Turn the sentence into an expression

5.three times the sum of two consecutive
integers

Answers

3(x+x+1)

hope this helps

what is the determinant ?
PLS RESPOND IM IN DEEP NEED

Answers

Answer:  27

=======================================================

Explanation:

Check out the diagrams below. I posted two of them. Start with figure 1.

Notice how I've copied the first two columns and placed them on the right side of the matrix.

After that, I've highlighted the diagonals. The numbers in each diagonal grouping multiply together. I've used color coding to show this.

Once you find all those products, you add up the values. Figure 1 shows a result of 42. This isn't the final answer, but it helps us get there.

Figure 2 is a similar idea, but we're doing the off diagonals instead of the main diagonals. The result here is 15.

The last step is to subtract the results found in figures 1 and 2. We get 42-15 = 27 as the final answer.

You could use co-factor expansion as an alternative method. For me, I prefer this method of multiplying diagonals. Unfortunately the method only works for 3x3 matrices.

PLEASE SOMEONE I NEED IT ASAP DUE AT 6:30!!!
Someone please....
Please define the following terms:

mercantilism, import, export, enumerated article, legislature, indentured servant, Navigation Acts, Dominion of New England, English Bill of Rights.

Answers

Answer:

Mercantilism - trading or selling various of goods or products for commission

import - to bring goods in form another source/place

export - send goods to another coutry for money or other items

enumerated article - english colonies could export only to England in the 17th century were sugar, tobacco, cotton and indigo (types of goods)

Navigation Acts - An act that allowed ONLY english ships to bring goods into England, and let north American export their items to England

Dominion of New England - A bunch of England colonies made by king James II of England in 1686 used to tighten British administration of their colonies.

English Bill of Rights - A act that was signed by the law used to ultimately give the parliament power over the monarchy  

What is the length of segment DF?
B
4/28
1
68°
C
2
А A
2
3
8
4
68°
28°
F
5
Type your answer.

Answers

Answer:

DF = 17.12

Step-by-step explanation:

From the picture attached,

From ΔABC and ΔEFD,

m∠ABC = m∠EFD = 28°

m∠BAC = m∠EDF = 68°

By AA property of similarity, ΔABC and ΔEFD will be similar.

And their corresponding sides will be proportional.

[tex]\frac{AB}{EF}=\frac{BC}{DF}=\frac{AC}{ED}[/tex]

[tex]\frac{4}{EF}=\frac{BC}{DF}=\frac{2}{8}[/tex]

[tex]\frac{4}{EF}=\frac{1}{4}[/tex]

EF = 16

Now by applying cosine rule in ΔDEF,

DF² = ED² + EF² - 2(ED)(EF)cos(E)

DF² = 8² + (16)² - 2(8)(16)cos(84)°

DF² = 320 - 26.76

DF = √(293.24)

DF = 17.12

-3 = 5 - 4x in algebra tiles

Answers

the answers is 2 cause you subtract 5 to the other side getting -8= -4x dividing both sides by -4 getting 2

(07.03)
What is the value of y in the equation 2(4y - 1) = 6? (4 points)
0
Ob
1
Ос
6
Od
8

Answers

Answer:the answer is 1

Step-by-step explanation:

2(4y-1)=6

Divid by 2 on both sides

4y-1=3

Add 1 to both sides

4y=4

Divid both sides by 4

Y=0

Sean has some candy bars that he wants to give away. He is going to give each person 1/8 of a bar, and he has 2 3/4 bars to give away
how many people will get candy?

Answers

Answer:

jdfsddudnfdhujskvbusduyhd

Step-by-step explanation:

habdaerfukhdskfsubfa

pls help what is 1+2

Answers

Your answer would be 3
One plus two is equal to three 1. +. 2. =3

Write the fraction 5/8 as a percent and as a decimal.

Answers

Answer:

0.625

62.5%

Step-by-step explanation:

5/8 is 0.625 as a decimal and

0.625*100 is 62.5 as a percent

Please find the x, thank you!

Answers

Switch around the equation
7/x - 9/x = -1/4
-2/x = -1/4
Cross multiply
x = 8

Answer:

X=8

Step-by-step explanation:

Hope this helps

FOR 20 POINTS!!!!! Luis has $12 and wants to buy 6.6 pounds of apples. Apples cost $1.80 per pound. Luis rounded each value and estimated that he does not have enough money to cover the cost of the apples before sales tax is applied. Which best explains how his estimate relates to the actual product? Because each value rounds up, his estimate is higher than the actual product. He might have enough money to buy the apples. Because each value rounds up, his estimate is higher than the actual product. He does not have enough money to buy the apples. Because each value rounds up, his estimate is lower than the actual product. He does not have enough money to buy the apples. Because each value rounds up, his estimate is lower than the actual product. He might have enough money to buy the apples.

Answers

Answer: Hope this helps.

Because each value rounds up, his estimate is higher than the actual product. He might have enough money to buy the apples. So A.

Step-by-step explanation:

We don't actually know what it was that Luis was estimating. Assuming he was estimating the cost of the apples he wants to buy, rounding up both the price and quantity will give an estimate of $2/lb × 7 lb = $14, which is more than he has to spend.

Luis could refine his estimate by realizing the actual price is 10% less than the vaue he used, and the actual quantity is not quite 6% less than the value he used. The amount Luis has is about 14% less than the cost he estimated, so considering estimation errors, he probabaly has enough money.

The best choice among the answers is the one shown above.

what is n in a hexagon

Answers

Answer:

For a hexagon, n=6.

Step-by-step explanation:

Answer:

n = 6

Step-by-step explanation:

A hexagon has 6 sides

Help look at the image

Answers

Answer:

There. I looked at the image.

The thing is right because they are all the same.

Step-by-step explanation:

Plz mark as Brainliest!

Joan planted 150 tulip bulbs, but only 20% of them bloomed. How many tulips
bloomed?

Answers

120 tulips just 150 x .80= 120

easy question solve and get 10 points 3245=3×100__×2×__×__4×__+5
the same number goes in each of the blank space to make the number sentence correct what is the missing number
options
10
100
311
1000​

Answers

Answer:

The missing numbers are (1000, 100, 10) 3 x 1000 + 2 x 100 + 4 x 10 + 5

Step-by-step explanation:

3 x 1000 = 3000

2 x 100 = 200

4 x 10 = 40

0 + 5 = 5

3000 + 200 + 40 + 5 = 3245

business success edge

Answers

hello again thanks for the points but why are you putting these questions because you passed the essay?

Other Questions
which university provides boxing as a sport in South Africa? Which sentence, if added after sentence 6, would best create a strong, descriptive image that helps to explain why Rachel feels comforted?She was young yet carried herself with great confidence, and her clear eyes locked onto mine and oozed kindness.Dr. Perez was the youngest-looking dentist I had ever seen. She looked to be only a few years older than me.I knew that I would like Dr. Perez and would never again be so anxious before a dentist appointment.Dr. Perez moved quickly around the room, quietly gathering her dental tools. A can of paint will cover 400 square feet. What is the length of the edge of the largest square that can be painted with this can of paint? HELP ME PLZZ I NEED HELP WITH THIS!! Measuring Physical Properties Lab ReportInstructions: In the Physical Properties lab, you will test the physical properties of different building materials in order to pick the appropriate materials for a new home in Tiny World. Record your observations and test measurements in the lab report below. You will submit your completed report.Name and Title:Include your name, instructor's name, date, and name of lab.Objective(s):In your own words, what was the purpose of this lab?Hypothesis:In this section, include the if/then statements you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.Procedure:The materials and procedures are listed in your virtual lab. You do not need to repeat them here. However, you should note if you experienced any errors or other factors that might affect your outcome.Using the summary questions, clearly define the dependent and independent variables of the experiment.Data:Record the results of each of your physical property tests in the table below. Wood Clay Brick Iron Aluminum Copper NickelFlexibility(?/10) Magnetism(number of paper clips) Thermal Conductivity(W/(mK)) Electrical Conductivity(x107 S/m) Density(g/cm3) Conclusion:Your conclusion will include a summary of the lab results and an interpretation of the results. Please answer all questions in complete sentences using your own words.Using two to three sentences, summarize what you investigated and observed in this lab.What building material did you use to build your house? Did your results support or fail to support your hypotheses?What were the densities of the materials you chose for the walls and floor for the home in Tiny World? Why do you think a building material's density is important when building homes or architectural structures?Why wouldnt you choose wood or aluminum for the latches on your house?Which material has the highest thermal conductivity? Which material has the highest electrical conductivity? Explain why thermal and electrical conductivity is so high with this material.Think about where you live now or where you have lived in the past; use complete sentences to describe this environment and the weather. What building materials do you believe would work well to build a home in that area? Explain why you chose these materials. Each week, Sachi has 3 soccer practices that each last 45 minutes. Write the unit rate in minutes per practice. Then find the total time she practices soccer each week. The specific rotation of (S)-2- butanol is + 13.5. If 1.00 g is dissolved in 10.0 mL of ethanol and placed in a sample cell with a length of 1.00 dm, what observed rotation do you expect? The revolt at Anahuac ended with _____________.a.the return of Stephen F. Austinb.the outbreak of malariac.the surrender of Captain Tenorios forcesd.the surrender of William B. Travis 2(2x+2)=7x+2-3x+2solve WARNING WARNING SCP-096 HAS BREACHED CONTAINMENT ALL AGENTS NEARE SITE 37 PLEASE RESPOND CLASS X BREACHREMEMBER S.C.P SECURE CONTANE PROTECT Fermentation and aerobic respiration break down glucose to make energy. Which statement correctly compares the two processes?A. Fermentation uses more oxygen than aerobic respiration uses.B. Aerobic respiration uses more glucose than fermentation uses.C. Aerobic respiration produces less energy than fermentation produces.D. Fermentation produces less energy than aerobic respiration produces. MYTHOLOGY QUESTION!How did Iolaus help Hercules defeat the sea monster Hydra?A. By holding each of hydras headsB. by burning the stumps Hercules severedC. by severing Hydras tailsD. by blinding Hydra with a spear suppose an elevator starts at the top floor of a high rise building at a height of 500 feet above the ground floor and descends without stopping at a rate of 17 secondsWrite a function that describes the height, h of the elevator after t seconds in function form please help me in this question In chapter one of Ocean Storm Alert, the authors purpose is to inform readers of the cause of ocean water movement.Below, write 4 facts that support the author's purpose. What does the author say to inform readers of the cause of ocean water movement?write 4 facts that support the author's purpose on the book Ocean Strom Alert Read the excerpt from President Ronald Reagans speech on the night before the 1980 presidential election. And many Americans today, just as they did 200 years ago, feel burdened, stifled and sometimes even oppressed by government that has grown too large, too bureaucratic, too wasteful, too unresponsive, too uncaring about people and their problems. Which statement best describes the rhetorical technique used in this excerpt? He appeals to logos by referring to two hundred years ago. He uses parallelism with the repetition of the word too. He appeals to ethos by showing he cares about Americans. He employs understatement by saying that many feel burdened. anybody can enjoy the sport of mountain climbing, as it is extremely accessible to all Americans? What is Constituent Element? Help Number three please!!! Put the following body parts in order from top to bottom