What is the result of adding these two equations?

5
x

9
y
=
3
5
x

9
y
=

2

−5x−9y
5x−9y


=3
=−2

Answers

Answer 1

Answer:

[tex] - 18y = 1[/tex]

y=-1/18


Related Questions

Alex accidentally left a bag of carrots in the warm car. When he found them, they had
wilted and were soft. He decides to place them in a container of water and check on
them every half-hour or so for several hours. Predict what will happen to the carrots and
why​

Answers

they will start to get very mushy, but they will stay at room temperature.

What percentage of people are likely to have mutations in their DNA?

Answers

Answer:

20 percent.

Explanation:

Hope this helps!

What is the most superior upper body muscle?

Answers

Obturator Externus

Obturator Externus: This is one of the smaller muscles of the medial thigh, and it is located most superiorly.

Answer:

Obturator Externus

Obturator Externus: This is one of the smaller muscles of the medial thigh, and it is located most superiorly.

Explanation:

Help me out here? 10 Points!

Answers

Answer:

I did that yesterday

i can help

A segment of RNA reads A U G U C C A C A. Use the codon table to determine what sequence of amino acids for the segment should be?

Answers

Answer:

Met-ser-thr

Explanation:

Im good at this stuff xd

Create a list of at least five expenses you would have to pay if you were going to raise a sheep for one year. You can assume that the land and the barn are available and focus just on the cost of raising a sheep. You do not need a dollar amount for the expenses; just identify what items should be included in the budget.

Answers

Answer:

Food, medication, rent of the land, doctor fee and cleaning.

Explanation:

The food, medication, rent of the land, doctor fee and cleaning are the expenses that I have to pay if I was going to raise a sheep for one year. Good feed is very important for raising an animal in order to get good products from that animal. Medication safes the animal from infection and other diseases that lowers the quality of that animal. I have to pay the rent of the land on which I raise that sheep and also pay doctor fee for their checkup.

6. What blood type is shown in the picture?
A
Rh
B

Answers

Answer:

B

Explanation:

Blood type is shown in the picture is B positive.

What do you mean by blood type?

"A blood type is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells."

What are the main blood types?

There are 4 main blood types or groups defined by the ABO system:

blood group A – has A antigens on the red blood cells with anti-B antibodies in the plasma.blood group B – has B antigens with anti-A antibodies in the plasma.blood group O – has no antigens, but both anti-A and anti-B antibodies in the plasma.blood group AB – has both A and B antigens, but no antibodies.

To know more about blood types here https://brainly.com/question/275815

#SPJ2

Which of the following places is generally not considered an open system?
A) the Pacific Ocean
B) the Earth
C) the Amazon Rainforest
D) the Nile River

Answers

B, the earth because there is a limit of how much matter is exchanged

Answer:

B) The Earth

Explanation:

Edg 2021

in a cladogram-
A. the most ancient organism, called the origin, are found at the very base of the tree diagram
B. The closer the branch point is to an organism, the more related those organisms are
C. neither A nor B are true
D. both A and B are true

Answers

Answer:

its A

Explanation: its a

Punnett squares provide an easy way to predict the possible genotypes for an offspring, but it is not practical to perform a Punnett square analysis on all possible combinations of all members of a population to predict what the population might look like in the future.

a. True
b. False

Answers

Answer:

True

Explanation:

There are certain limitations associated with the Punnett Squares. They are not useful in case of complex genetic inheritance such as linkage between two genes. In case of linkages it becomes difficult to estimate the distribution of genotypes and phenotypes. For example in case of  Nail-patella Syndrome and gene associated with blood group two genes lie on the same chromosome in close vicinity and hence there are high chances of inheritance of these traits in the offspring from the parent thereby causing  random distribution of the two traits. This random distribution cannot be captured through punnet square.  

The same problem is associated in case where a single gene is determined by multiple genes with graded effects of each gene.  

Living things share many basic characteristics and needs. One characteristic is the need to maintain the internal conditions of their bodies, even if outside conditions change. Maintaining ___________ involves controlling the balance of water and minerals in the body, responding to changes in the environment, and controlling metabolism.


homeostasis


cellular organization


heredity


metabolism

Answers

Answer:

The answer is homeostasis.

Explanation:

In biology, homeostasis is the state of steady internal, physical, and chemical conditions maintained by living systems. This is the condition of optimal functioning for the organism and includes many variables, such as body temperature and fluid balance, being kept within certain pre-set limits.

does coal releases carbon dioxide into the atmosphere?​

Answers

Answer:

yes

Explanation:

Coal is an important source of energy in the United States, and the Nation's reliance on this fossil fuel for electricity generation is growing. The combustion of coal, however, adds a significant amount of carbon dioxide to the atmosphere per unit of heat energy, more than does the combustion of other fossil fuels

Answer:

Fossil fuels release greenhouse gases into the atmosphere, which increases levels of carbon dioxide and other gases, trapping heat, and contributing to global climate change. This means that coal does release greenhouse gases, like carbon dioxide and nitrous oxide, into the atmosphere.

Match the description below with the correct biological group it represents.
Mr. Piggott has discovered a eukaryotic, unicellular, heterotrophic organism without a cell wall that is living in an aquatic environment.
О
Viruses
OB
Fungi
Plants
O
Eubacteria
Archaebacteria
OF
Animals
O
O
Protists

Answers

Answer:

Protists

Explanation:

Animal like protists which we called protozoans are eukaryotic, unicellular, heterotrophic organisms without cell wall found in aquatic environment.

pls help with this its about science and i hate science so i need ur guys help pls!

Answers

Answer:

Number 1

Explanation:

Suppose you are given an unknown solution and you need to test its pH. The pH meter is broken, and all you have is the indicator bromothymol blue to use. You add two drops of bromothymol blue to 10 mL of your unknown, and the solution turns a bright yellow. Which of the following is the best estimate of the pH of the unknown solution?
a. 8.5
b. 11.5
c. 1.5
d. 7.0

Answers

Answer: The best estimate of the pH of the unknown solution is 1.5. Option C.

Explanation:

A substance which shows different colours in acidic and basic media is called an indicator. Typical examples of common indicators includes:

--> Litmus: colour in acid ( red), colour in base (blue) and colour in neutral (purple).

--> Methyl orange: Colour in acid (red), colour in base (yellow) and colour in neutral (Orange).

--> Phenolphthalein: Colour in acid (colourless), colour in base (pink) and colour in neutral (colourless).

--> BROMOTHYMOL BLUE: Colour in acid ( yellow), colour in base (blue) and colour in neutral (green).

The indicators are themselves weak organic acids or bases and hence slightly dissociated in solution. The colour of the indicator at any given point depends on the relative proportion of the dissociated ions to the undissociated molecules since they have different colours.

From the question, since the pH meter is broken, and the pH of the unknown solution is to be determined,using an indicator instead. The best estimate of the pH of the unknown solution is 1.5. This is so because BROMOTHYMOL BLUE is blue when the pH is greater than 7.6, green when the pH is between 6-7.6, and yellow when the pH is less than 6. And pH value of 1.5 is less than 6, indicating the solution is very acidic.

Why is it important that the inner membrane of the mitochondria be folded in both plant and animal cells?

Answers

it increases the surface area for energy production

What effect do instincts have on an animal's survival?

Answers

Answer:

The survival instincts is like a switch that goes off in the most adverse situations and activates the animals ingenuity to save themselves.

Explanation:

Suppose you are a research assistant in a lab studying DNADNA-binding proteins. You have been given the amino acid sequences of all the proteins encoded by the genome of a certain species and have been asked to find candidate proteins that could bind DNADNA. What type of amino acids would you expect to see in the DNADNA-binding regions of such proteins

Answers

Answer:

The correct answer would be - Positively charged amino acid at pH 7 such as lysine, arginine, and histidine.

Explanation:

We know that DNA is a negatively charged molecule and proteins bind with them. This binding takes place between negative DNA molecules and positively charged amino acids of DNA binding protein.

Amino acids form hydrogen bonds with the nitrogen bases or phosphate groups of the DNA. Therefore, the DNA binding amino acid sequence should be of positively charged amino acids like lysine, arginine, and histidine at pH 7.

The Fitness of Water. For each of these statements about water, decide whether the statement is true and describes a property that makes water a desirable component of cells (T); is true but describes a property that has no bearing on water as a cellular constituent (X); or is false (F). For each true statement, indicate a possible benefit to living organisms.
a. Water is a polar molecule and hence an excellent solvent for polar compounds.
b. Water can be formed by the reduction of molecular oxygen O2.
c. The density of water is less thaan the density of ice.
d. The molecules of liquid water are extensively hydrogen-bonded to one another.
e. Water is odorless and tasteless.
f. Water has a high specific heat.
g. Water has a high heat of vaporization.

Answers

Answer:

A) True

The polarity of water is what makes it an ideal transport vehicle for nutrients and micronutrients that are water-soluble. Within organisms, water can be used to transport nutrients and even waste from one part of the body to the other. In the case of humans, urine is used to get rid of soluble waste from within the body.

B) True

During the process of photosynthesis, carbon dioxide (CO2) and water (H2O) are taken from the air and soil respectively. Oxygen is able to produce water when it is reduced. Hydrogen during this process is oxidized.

C) False

Ice floats on water. Hence it cannot be denser than water. Rather, water is denser than Ice. Because of the structure of hydrogen bonds, when they are iced, the bonds tend to pull apart, thus making ice expand somewhat. This expansion creates microscopic pockets of air in the molecules thus given them buoyancy.

D) True (X)

E) True (X)

F) True

Heat Capacity refers to the amount of heat a substance like water can absorb before it's temperature rises by 1 degree. This property is important, because, were it not for the high specific heat capacity of water, many people and plants would have boiled over.

G True (X)

Heat of vaporization is the kind and amount of energy required to alter one gram of liquid into a gas at boiling point

Cheers

2. What compounds are formed from oppositely charged atoms?

Answers

Answer:

ionic bond

Explanation:

Ionic bonds are formed between a cation, which is a metal, and an anion, which is a nonmetal.

Answer:

an ionic bond.

Explanation:

How do whales differ from fish
A) whales use blowholes for breathing
B) whales have scales that cover the skin
C) whales develop lungs following metamorphosis
D) whales reproduce through external fertilization

Answers

Whales breathe through lungs, so C they develop lungs.

Answer:

awsner is c, whales develop lungs following metamorphis

Explanation:

Can someone help me find the words?

Word search only answer if you an expert at it PLEASE

Answers

Answer:

so u see

Explanation:

why does flowing water deposit the largest particles first

Answers

Answer:

Deposition by Water

Flowing water slows down when it reaches flatter land. ... The water starts dropping the particles it was carrying. As the water slows, it drops the largest particles first. The smallest particles settle last.

Please answer the question under

Answers

Answer:

c. cell differentiation

Explanation:

I ssearched it up, and I took biology last semester. This is the only answer that makes sense.

What are the answers too those

Answers

Answer:

a, d, b, c, a, c, d, b, a, d,

Explanation:

What is the name of the thick, lower end of the digestive tract where solid waste is gathered and leaves the body? O esophagus o small intestine Oliver o large intestine​

Answers

Answer:popopopop

Explanation:

give point

Answer:   Large Intestine

Hope this helps

Describe how changes in the lining shown in the diagram adapt it for its function if an egg is fertilised

Answers

Answer:

The lining in the womb becomes thicker and spongy to protect the embryo/foetus in all stages of life inside the womb and to stop damage/harm coming to it

Explanation:

Please help I will fail and I’m confused

Answers

Answer:

b- a genetic mutation must have occurred

Explanation:

Dolphin fins and shark fins:

a.
are an example of convergence.

b.
are an example of divergence.

c.
suggest these two populations could interbreed.

d.
are evidence that adaptive evolution is mainly driven by random forces.

e.
None of the above is correct.

Answers

Answer:

a

Explanation:


please help me im timed and will give brainiest:(​

Answers

Answer:

turtles, crocodiles, snakes, dinosaurs, and birds

Explanation:

Answer:

why u ghosting me

Explanation:

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