Before there was any life on Earth, which gas was absent from the ancient atmosphere?


A.nitrogen
B.ammonia
C.oxygen
D.methane

please answer lol

Answers

Answer 1
If I am right it should be D because pigs make methane

Related Questions

y+2 y+2 y+2 y+2 y+2
^
30

Answers

Answer:

45

Step-by-step explanation:

9y+1073741824

....…....…....…....…....…....…....…...

....…....…....…

For a group of objects made of the same material, the weight of an object varies directly with its volume. If an object has a volume of 20 cubic inches and weighs 28 ounces, what is the constant of variation?

Answers

Answer: 7/5

Step-by-step explanation:

What is the radius and diameter of the following circle?

Answers

Answer:

radius is 11cm diameter is 22cm

Step-by-step explanation:

Answer:

Radius: 11

Diameter: 22

Step-by-step explanation:

The radius is the 11 being shown, the diameter is 2 times the radius.

Hope this helps!

(X) 10.9.PS-7
Find the volume of the
triangular prism.
3.6 cm
9 cm
5.4 cm
The volume of the triangular prism is
3
cm

Answers

Answer:

9 cm because 69

Step-by-step explanation:

In the figure, BC is a support for the roof
of a garage. What is the length of BC?

Answers

Answer:

Bc = √63 ft

Step-by-step explanation:

Here, we want to get the length of BC

As we can see, there is a right angled triangle ABC, with 12ft being the hypotenuse and 9 ft the other side

So we want to get the third leg which is BC

we can use the Pythagoras’ theorem here

And that states that the square of the hypotenuse equals the sum of the squares of the two other sides

let the missing length be x

12^2 = x^2 + 9^2

144 = x^2 + 81

x^2 = 144-81

x^2 = 63

x = √63 ft

Help me please ❤️❤️❤️❤️, everyone I wil give u 10 points

Answers

in the box under the +4 put a +1, which means that column would equal 7. and then to the right of the +1 put a +6. on top of the +6 put a +3. then to the left of +3 put a 0. and the. on the bottom of the +1, right next to the +2, put a +6.

help whoever ever get s it 5 stars and brainless ​

Answers

Answer:

3/4

Step-by-step explanation:

9/12 which can be simplified by dividing by 3 (the common factor) to get 3/4.

Let f(x) = -x + 3
Find f(2)

f(3)=

Answers

Answer:

1

Step-by-step explanation:

f(2) = -2+3

=1

Asap, need help. Thanks if your going to help me! Please explain the steps!​

Answers

Answers:

Person A receives at least 800 dollars, but no more than 1600 dollarsPerson B receives at least 1000 dollars, but no more than 2000 dollars

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

Explanation:

We don't have enough information to nail down exact figures, but we can make a range estimate.

The two people (call them A and B) share the profits in the ratio of 4 to 5

In shorthand notation, we can say the ratio is 4:5

This means person A gets 4x dollars while person B gets 5x dollars

The ratio 4x : 5x reduces to 4:5 after dividing both parts by x. The variable x is some positive real number.

The total profit is therefore 4x+5x = 9x dollars

This expression 9x is between 1800 and 3600 dollars, including both endpoints

We then can say...

[tex]1800 \le 9x \le 3600\\\\\frac{1800}{9} \le \frac{9x}{9} \le \frac{3600}{9}\\\\200 \le x \le 400[/tex]

We see that x = 200 is the smallest possible x value. This leads to person A and B receiving 4x = 4*200 = 800 dollars and 5x = 5*200 = 1000 dollars respectively. Note how the ratio 800:1000 reduces to 4:5 after we divide both parts by 200. We can see that 800+1000 = 1800 which is the lowest profit possible.

The inequality above shows that x = 400 is the largest x value possible. If this is the case, then person A receives 4x = 4*400 = 1600 dollars while person B receives 5x = 5*400 = 2000 dollars. The ratio 1600:2000 reduces to 4:5 after we divide both parts by 400. We can see that 1600+2000 = 3600 is the largest profit possible.

-------------------------

To summarize:

Person A can receive anywhere between 800 dollars and 1600 dollars (inclusive of both endpoints).Person B can receive anywhere between 1000 dollars and 2000 dollars (inclusive of both endpoints).

The actual amount they receive will depend on what the actual profit is. Since we're only given the range of the profit, we can only make an estimated guess of the range for each partner.

-------------------------

Side note: For either person, the ratio of the max to min is 2:1. This tells us that the max amount they receive is double compared to the min amount they receive. It's no coincidence that 3600 is double that of 1800.

1 Expand each expression
a 4(x+6)

Answers

Answer:

4x+24

Step-by-step explanation:

The correct answer is:

4(x+6)

4x + 24

what is the answer to 1 3 x + 5 x = -6

Answers

Answer:      

x2-6=5x

Step-by-step explanation:

Answer:

x = -1/3

Step-by-step explanation:

13x + 5x = -6

=> 18x = -6

=> x = -6/18

=> x = -1/3

Hope it helps :)

please mark my answer as the brainliest

f(x) = (x + 1)²

what is the domain of f? please help​

Answers

The domain is all real numbers

Round to the nearest thousand. 6,159​

Answers

Answer:

6,000

Step-by-step explanation:

To round to the nearest thousand, you keep the digit in the thousands and round up or down, clearing all other smaller units.  You round up when the next largest digit, in this case, the hundreds, is 5 or larger.  Meanwhile, you round down when it is 4 or smaller.  Here it is 1, so you round down to 6,000.  If it was 5 or larger, you would round up to 7,000.

6,000

To round a number we look at the number that is right of the one we are rounding. If the number to the left is 4 or under, you round down. If it's 5 or above, you round up.

Hope it helps! Good luck!! :D

Please help me, Please real answers only thanks

Answers

Answer:

A.

Step-by-step explanation:

substitution of coordinates

Graph
How to put -31/2 , 21/2 on a graph

Answers

3/1 and put on graph

The graph shows the number of cups of coffee Sherwin consumed in one day and the number of hours he slept that same night:

A scatter plot is shown. Data points are located at 1 and 9, 3 and 5, 5 and 6, 4 and 4, 2 and 7, and 6 and 4. A line of best fit crosses the y-axis at 10 and passes through the point 6 and 4.
How many hours will Sherwin most likely sleep if he consumes 9 cups of coffee?
Answers-
1, because y = −x + 10
9, because y = −x + 10
2, because y = −x + 10
10, because y = −x + 10

Answers

Answer:

1, because y = -x + 10

Step-by-step explanation:

Good Luck! c:

Answer:

1, because y = −x + 10

If rectangle LMNO were rotated 180° clockwise about the origin to create rectangle L'M'N'O', what would the measure of angle O' be?

Answers

9514 1404 393

Answer:

  90°

Step-by-step explanation:

Any corner angle in a rectangle is 90°. Rotating the figure does not change that. Angle O' = 90°.

_____

Additional comment

No rigid transformation (translation, rotation, reflection) changes any angles. Nor does uniform dilation (the kind we usually study). Hence any rectangle that is translated, rotated, reflected, or dilated will still have all angles measuring 90°.

HELP A KID IN NEED
IM JUST A CHILD TRYING NOT TO FAIL MATH

Simplify the expression. 3z+14+5z-9

IM GIVING ALOT OF POINTS PLEASE HELP ME

please


lol sorry I'm kind of desperate

HELPPPP

Answers

Answer:

8z+5

Step-by-step explanation:

Let's split the expression into two terms- z and... not z :)

3z+5z=8z

Why? it's just 3+5 with z tacked on the end

14-9=5

simple math :)

put it together to get

8z+5

all done!

lmk if you have any more questions

Explain the prices of dividing two fractions

Answers

Answer:

When dividing two fractions, the process is very easy.  You simply multiply the numerator fraction by the reciprocal of the denominator fraction.  In other words:

[tex]\frac{a}{b} \div \frac{c}{d} \\= \frac{a}{b} \times \frac{d}{c} \\= \frac{a \times d}{b \times c}[/tex]

Write an equation in slope-intercept form that represents the situation:

Bill started with 15 pairs of shoes. On average, Bill buys 7 new pairs of shoes every 2 months.

Answers

Answer:

         y = 3.5x + 15

Step-by-step explanation:

Number of months is x, and number of pairs of shoes after each month is y.

7 new pairs of shoes every 2 months means that after each month:

y = 7/2 x

We need to add the 15 pairs from start.

y = 3.5x + 15

i need help with this geometry assignment please.

Answers

Answer:

172.8 is the area of the parallelogram

What is the equation of the line graphed below ?

Answers

The answer is A. y = -2/5

A hybrid SUV can travel 400 miles on a 15-gallon tank of gas. How many miles can it travel on 6 gallons of gas?

Answers

Answer:

160miles

Step-by-step explanation:

400miles uses15g what about 6g.

Using cross multiplication. Multiply 6x400/15 = 160miles

Answer:

160 miles

Step-by-step explanation:

If it travels 400 miles on 15 gallons, then it will travel x miles on 6 gallons

400 miles -> 15 gallons

x miles -> 6 gallons

15 * x = 6 * 400

15x = 2400

x = 2400 / 15

x = 160 miles

Express in the form 1:n
3:12

Answers

Answer:

1:4

Step-by-step explanation:

Given

3: 12

To express in the form 1:n

Consider how to make 3 equal to 1, we simply divide 3 by 3 to get 1 as such, we would also divide 12 by 3

3:12

= 3/3:12/3

= 1:4

Comparing with 1:n, it is safe to say that n = 4

13. L'Shonda purchased a container of juice that contains 200 calories. The label says that 40% of the calories are from carbohydrates. How many calories are from carbohydrates? ​

Answers

Answer:

80

Step-by-step explanation:

So I here's my thought process on this:

200 divided by 2 is 100

100 - 40% is 60, leaving 40 behind.

So double that and it would be:

200 - 40% is 120

200 - 120 = 80

80% is the answer.

Arkadaşlar yardım edin EN İYİ SEÇERİM​

Answers

Answer:

seviye 2

a=3 b=3

c=5 d= -1

seviye 3

a x=5 b x=15

c x=15 d x=9

PLEASE QUICK WILL GIVE BRAINLESS
Which number is the additive inverse of -44 -422 -47 1 2 2​

Answers

Answer:

Multiplicative inverse of 2 1 2

The opposite of 212 is −12 . The reciprocal of 212 is 25

Step-by-step explanation:

The guy up there is right :(

Consider the equation:
0 = x^2 - 10x + 10
1) Rewrite the equation by completing the square.
Your equation should look like (x + a)2 = b or (x - c)2 = d.

Answers

x² - 10x + 10 = 0

Isolate the constant term

x² - 10x = -10

Complete the square
• coefficient of the x term: -10
• divide in half: -5
• square it: (-5)² = 5²
• add 5² to both sides, to complete the square and keep the equation balanced:
x² - 10x + 5² = -10 + 5²
(x-5)² = 15

Answer:

1) We can rewrite the equation as 15=(x-5)^2

2) The solutions to the equation are x=5±15

Which expression is equivalent to 6(-7k - 2) + 6k?
-12k - 36
-K - 12
-36k - 2
-36k - 12

Answers

Answer:

-36k - 12 that is the answer

helppppppppppppppppppppp c/2+5=1

Answers

Answer:

c/2=-4

c=-8

Step-by-step explanation:

Answer:

c = -8

Step-by-step explanation:

Okay, so this is a standard equation, so we have to do the thingy thing on each side:

c/2 + 5 - 5 = 1 - 5

c/2 = -4

c/2 x 2 = -4 x 2

c = -8

So, c = -8

Other Questions
Figure ABCD is a rectangle. Find the value of x. X= [?] A billiard ball is struck by a cue. It travels 100 cm before ricocheting off a rail and traveling another 100 cm into a corner pocket. The angle between the path as the ball approaches the rail and the path after it strikes the rail is 45 degrees. How far is the corner pocket from where the cue initially struck the ball? Caroline borrowed 300,000 from the bank in order to buy a house. If the simple interest RATE that the bank charged her was 3.5%, and she ended up paying the bank back a total of $615,000 (principal and interest total), how long (in years) did it take her to pay back the loan? Enter the word that correctly completes the sentence.Nobody came.No vino______. How do I solve 2/3x-1=-3 URGENT HELP NEEDED SO PLS HELP Elena mixes 5 cups of apple juice with with 2 cups of ginger ale to make punch for a party she wants to make 35 cups of punch how much apple juice does she need to buy? 1. Musical Instruments make sounds in 3 ways:A. String Instruments (Guitar, Cello, Bass)B. Wind Instruments (Flutes and trombones, trumpet)C. Drums and Percussion The theme of order plays an important role in The True Confessions of Charlotte Doyle. Pretend you are explaining to a child why he or she needs to clean his or her room. In about 150 words or less, record the reasons you would use to convince the child that keeping a room in order is an important practice for now and the rest of his or her life. If you can, try to connect your reasons to bigger life lessons. Keep in mind that you will need to make it appropriate for a young audience.I GOT THE ANSWER SO YOU DONT HAVE TO WAITTo all the kids who don't like cleaning their room then I'm just saying you should clean your room. Cleaning your room is important because If you don't then you might hurt someone or your self which you shouldn't do. If you don't clean it might smell or you are gonna hurt your self. Doing a deep clean of your dirty room can also help tidy up your brain. This will help clear out any clutter and keep your room, and your thoughts, organized. Even though cleaning your room may feel really boring and stressful but it can help you feel a sense of an accomplishment, happiness and pride. Sometimes you might even lose something (or even someone) in your dirty room so in my opinion I think you should clean your room so you don't turn into a slob like a lot of people on the tv shows. (weird people). a) Work out16.3-4.97 + 8.6(2)I b) Work out2164.89 +7(2) Graph the system below and write its solution.-2x+y=-4y=1/2x+2 A strawberry farmer will receive 37 per bushel of strawberries during the first week of harvesting each week after that the value will drop 0.8 per bushel the farmer estimates that there are approxiamately 129 of strawberries int he fieldsand that the crop is increasing at a rate of four bushels per week when should the farmer harvest the strawberries to maximize their value? (Assume that "during the first week of harvesting" here means week 1. How many bushels of strawberries will yield the maximum value? (Round your answer to the nearest integer.)bushels2. What is the maximum value of the strawberries? (Round your answer to two decimal places.)$ does anyone know the answer????? 10-50---------- =135 Select all the advantages of a multienzyme complex over a metabolic pathwayA. There is less room for substrates to diffuse awayB. Each enzyme can be activated or inhibited individuallyC. The product of one enzyme will serve as the reactant for the nextD. The complex can be regulated as a group What level of government is most closely associated with zoning?a.localb.interstatec.federald.state Classify each number according to its value5.210-4 An elementary school student brings her mother, Kathryn, in for parent career day. Kathryn discusses what she does on a daily basis in her career as a firefighter. She also tells the students that firefighting is a family tradition, because her father and brother are firefighters too.What roles is Kathryn fulfilling while at the school? What is the slope???? A force of 500N Is applied to a steel wire of goss_sectional area 0.2m2 the tensele stress is a. 2.5x10 1nm-2 b. 1 0x102nm-2 c. 2.5x103nw-3 d. 1.0x103nm-2