Mathematics Middle School

HELP I NEED THIS ANSWER ASAP
"the numbers 1-25 are written on slips of paper and placed in a bag. a number is chosen, it is replaced, then another is chosen. what is the probability of getting a perfect square, then a odd number?"
compound probability

Answers

Answer 1

Answer:

10.4% or 13/125

Step-by-step explanation:

5 perfect squares in the set of numbers

13 odd numbers

(5/25) x (13/25) = 0.104

0.104 x 100 = 10.4%

i hope its right

Related Questions

I will mark brainliest

Answers

Answer:

id say 90 degree clockwise

Step-by-step explanation:

Answer:

it would be a 90 degree angle

Step-by-step explanation:

hope this helps

sorry if its wrong

ok so this is not for a test but solve this
8,827+8,729= A
A=....?

a is answer ok.?

Answers

Answer:

The answer is 17,556

Step-by-step explanation:

Hope this helps

Correct answer is 17556 I’m not sure if that’s what your looking for

I might mark brainliest I just need help

Answers

Answer:

i think you have to measure your diagram with a protector to find the angles

If you know the following facts ... then triangle emoji ADE ~ triangle emoji ABC by which reason

Answers

Answer:

b. SAS

Step-by-step explanation:

b. SAS

The answer is b.

The table models the population, P(n), of a colony of bacteria over n days.



Describe the type of model that best fits the data. Explain your reasoning.

Determine the equation for the function of best fit for this data.

Answers

Answer:

Bacteria in 2022

Step-by-step explanation:

.aybe it's correct

Define the following terms in your own words in terms of immune response


Antigen

Antibody

Apoptosis

Autoimmune disease

B-cell

T-cells

Helper

Killer

Suppressor

Memory

Leukocyte

Erythrocyte

Lymphocyte

Lymph Nodes

Macrophage

Mast Cell

Pathogen

Phagocyte

Answers

Answer:

an antigen is  toxic foreign substance, that induces an immune reaction in the body.

an antibody is a blood protein that is made in retort to the counteracting of a certain antigen.

apoptosis is the death of cells that occur normally and control part of a specific organisims growth.

an autoimmune disease is a condition in which your immune system mistakenly attack your body.

a b-cell is a type of lymphocyte that is responisble for the autoimmunity component in the adaptive immue system.

a t-cell is part of the immue system tht develop from types of stem cells in the bone marrow.

a helper is a type of white blood cells that serves as a specific and important key of immune functions.

a killer is an innate immune cell that shows a strong cytolyic function against physiologically stressed cells such as: tumor cells, and virus infected cells.

a suppressor is a lymphocyte that can suppress the antibody production by other lymphoid cells.

--

i apologize, i can get to more but i am busy.

Antigen - a toxin or other foreign substance which induces an immune response in the body, especially the production of antibodies

Antibody - a blood protein produced in response to and counteracting a specific antigen. Antibodies combine chemically with substances which the body recognizes as alien, such as bacteria, viruses, and foreign substances in the blood.

Apoptosis - the death of cells which occurs as a normal and controlled part of an organism's growth or development.

Autoimmune disease - Autoimmune disease happens when the body's natural defense system can't tell the difference between your own cells and foreign cells, causing the body to mistakenly attack normal cells. There are more than 80 types of autoimmune diseases that affect a wide range of body parts.

B-cell - B cells, also known as B lymphocytes, are a type of white blood cell of the lymphocyte subtype. They function in the humoral immunity component of the adaptive immune system.

T-cells - T cell, also called T lymphocyte, type of leukocyte (white blood cell) that is an essential part of the immune system. T cells are one of two primary types of lymphocytes—B cells being the second type—that determine the specificity of immune response to antigens (foreign substances) in the body.


Helper - A type of immune cell that stimulates killer T cells, macrophages, and B cells to make immune responses. A helper T cell is a type of white blood cell and a type of lymphocyte. Also called CD4-positive T lymphocyte.

Killer - A type of immune cell that has granules (small particles) with enzymes that can kill tumor cells or cells infected with a virus. A natural killer cell is a type of white blood cell. Also called NK cell and NK-LGL.

Supresor - A tumor suppressor gene (TSG), or anti-oncogene, is a gene that regulates a cell during cell division and replication. If the cell grows uncontrollably, it will result in cancer. When a tumor suppressor gene is mutated, it results in a loss or reduction in its function.

Memory - Memory is the ability of the brain to encode, store and retrieve information when required.

Leukocyte - A white blood cell, also known as a leukocyte or white corpuscle, is a cellular component of the blood that lacks hemoglobin, has a nucleus, is capable of motility, and defends the body against infection and disease.

Erythrocyte - A blood cell with hemoglobin-rich cytoplasm and whose main function is to transport respiratory gases, chiefly oxygen

Lymphocyte - a form of small leucocyte (white blood cell) with a single round nucleus, occurring especially in the lymphatic system.

Lymph nodes - Lymph nodes are located in many parts of the body, including the neck, armpit, chest, abdomen (belly), and groin. They contain immune cells that can help fight infection by attacking and destroying germs that are carried in through the lymph fluid. There are hundreds of lymph nodes throughout the body.

Macrophage - a large phagocytic cell found in stationary form in the tissues or as a mobile white blood cell, especially at sites of infection.

Mast cells - Mast cells are blood cells that are part of your immune system. They help you fight infections, but they are also involved in allergic reactions. Mast cells live longer than normal cells, and they grow in your bone marrow, your gastrointestinal tract, your skin, and your airways.

Pathogen - A pathogen is defined as an organism causing disease to its host, with the severity of the disease symptoms referred to as virulence. Pathogens are taxonomically widely diverse and comprise viruses and bacteria as well as unicellular and multicellular eukaryotes.

Phagocyte - A pathogen is defined as an organism causing disease to its host, with the severity of the disease symptoms referred to as virulence. Pathogens are taxonomically widely diverse and comprise viruses and bacteria as well as unicellular and multicellular eukaryotes.

I spent so long on this and I think I even did the other ones that the other guy didn’t do brainliest would be appreciated!

Hope I helped !

I don’t understand math so can you help me?

Answers

I know the volume is 6.5 X 3 = 19.5 X 2 = 39 that’s the volume
Surface area = 6.5x3 + 6.5 x 2 + 3 x 2 = 77

Graph the line that represents a proportional relationship between y and x where the unit rate of change of y with respect to x is 0.4 In other words, a change of 1 unit in x corresponds to a change of 0.4 units in y. Graph the line and write the equation of the line.

PLS HELP WILL GIVE BRANLIEST + 20 POINTS

Answers

So here the 'unit rate of change' means the slope. It's also referred to as 'rise over run'. A line can be expressed in the form y=mx+b, where m is the slope and b is the y intercept. So here, m is equal to 0.4 and the line is y=0.4x

Think of it this way: if you plug in 1 for x, you get 0.4 for y. So that matches what the problem was saying about a change of 1 unit in x means 0.4 units in y. To graph it, start at 0,0 and move 0.4 up in y direction (rise) and 1 to the right in the x direction (run). If you keep doing that and connect the points, that will be the line

The answer is y= 0.4x
Explain the answer
When x= 5 y=0.4 x 5=2 (5,-2) Tip equation of line is y=lax straight line must pass point (0,0)
Hope it helps:)

How do you write 4.279E-4 in standard form?

Answers

Answer:

0.0004279 in decimal form

Step-by-step explanation:

Answer:

4279/10000000

Step-by-step explanation:

Multiply and divide by 10 for every number after the decimal point. There are 7 digits to the right of the decimal point, therefore multiply and divide by 10000000.

'Hope this helps :)'

Which is NOT a way to prove that two figures are similar?

A.) In the case of triangles, prove that two pairs of corresponding angles are congruent.

B.) Prove that the figures have congruent corresponding angles and proportional corresponding side lengths.

C.) Prove that corresponding angle measures have been multiplied by the same scale factor and that sides are in proportion.

D.) Prove that one figure can be created by translating and dilating the other.

Answers

Answer: B

Step-by-step explanation:

Answer: C.) Prove that corresponding angle measures have been multiplied by the same scale factor and that sides are in proportion.

Step-by-step explanation: Just did it

What would be the correct calculation to determine pi from this circle?
A. 2 + 4
B. 4 - 2
C. 2 ÷ 4
D. 12.56 ÷ 4

Answers

Answer= D
because pi = 3.14
Hope this helps!
D bruv pi is 3.14 hope this helps!!

please help me with this

Answers

Answer:

The first one

Step-by-step explanation:

The answer is the first one because rise over run which basically means how much it goes up divided by how much it goes over which equals 1.25 you’re welcome

This is part 2 of my question! but the questions are marked as odds for this part, which is part 2.


Part 1 - https://brainly.com/question/27539883

(Repost)

Answers

19) 15 <= 9 + 3x

15) x = 23,24,25

17) x <= 115

9) Second line

11) g > 20, don't fill in dot, any number greater than 20

1) -3 + h<= 3.4

3) No, x > -2

5) x > 14, don't fill in dot, any number greater than 14

7) k<=20, fill in dot, 20 or any larger number

(took me while to type this out lol cause on mobile)

Find the surface area of a triangular prism that has a height of 11 meters and the triangular base shown. All dimensions are in meters.



S
A
=


m
2

Answers

Answer:

146 m²

Step-by-step explanation:

The total base area = base x length =  4 x 11 = 44 (1)

The area of each triangular surface = /2 x base x height = 1/2 * 4 * 3.5 = 7 and the areas of both triangular surfaces = 2 x 7 = 14 (2)

The surface area of each of the lateral surfaces = side of triangle x length = 4 x 11 = 44

The area of both lateral surfaces = 2 x 44 = 88 (3)

Adding up (1), (2) and (3) gives us 146 m² as the total surface area

Simplify the expression. Write your answer using decimals.

Answers

Answer:

2.3g-2.4 Is the Answer

Step-by-step explanation:

A tree is 4 feet 5 inches tall. How tall is it in inches?

Answers

53 inches because it’s multiply 4 by 12 and add 5

1 ft = 12 inches

4 ft = 4 × 12 = 48 inches

48 + 5 = 53 inches

hope it helps...!!!

All of the quadrilaterals in the shape below are squares. Find the area of the shaded region.

1st one to answer gets brainliest

Answers

32 is the answer because of the work shown

What is the mean of this stem and leaf plot? Show your work.
What is the median of the data? Show your work.
What is the mode of the data?

Answers

Answer:

mean:43.8 median:39 mode:31

Step-by-step explanation:

Mean: add all numbers together to get 1314. then divide by 30 (the amount of numbers in the plot). Median: order the numbers from least to greatest, then find the middle number

Mode: find the most repeaded number

The populations of two cities after t years can be modeled by

Answers

Answer:

Step-by-step explanation:

Hello There!!

Given

Value of 't' = 4

To Find

Difference between the population of the two cities

Solution

[tex] \text{{Assuming the population of two cities as}} \: \text{c}_1 \text{ and} \: \text{c}_2[/tex]

[tex] \text{ In Case of }\text{c}_1[/tex]

[tex]\text{c}_1 = -150\text{t} + 50,000 \\ \implies \text{c}_1 = - 150 \times 4 + 50,000 \\ \implies \text{c}_1 = - 600 + 50,000 \\ \implies \text{c}_1 = 49,400[/tex]

[tex] \text{ In Case of }\text{c}_2[/tex]

[tex]\text{c}_2 = 50\text{t} + 75,000 \\ \implies \text{c}_2 = 50\times 4 + 75,000 \\\implies \text{c}_2 = 200+ 75,000 \\ \implies \text{c}_2 = 75,200[/tex]

Now, We need to find the difference in their population

[tex]\text{c}_2 - \text{c}_1 \\ = 75,200 - 49,400 \\ = 25,800[/tex]

[tex]\therefore \text{Difference between their Population=} \red{25,800}[/tex]

Hope This Helps!!

Help me pls thank you

Answers

Answer:

More than half the students scored 81 or better on the test

There were 12 students who scored 80 on the test

The same number of students scored between 81 and 90 on the test as scored between 61 and 80.

Step-by-step explanation: Please think this through, I don't know if I'm correct. It is either all or one of these

What is the surface area of this triangular prism?

Answers

Answer:

303.98 cm squared

Step-by-step explanation:

your welcome

303.98cm that is your answer

words problems involving length and money

Answers

Answer:

12

Step-by-step explanation:

Since 8 poster takes 48 inches of tape

48/8 = 6

each poster will take 6

if you have two posters

6x2=12

so 12

Answer:

12 pieces divide 48 by 8 getting 6 multiple that by two getting the answer

Step-by-step explanation:

the price of a refrigerator is 1,199.00 plus 9% sales tax what is the sales tax on this refrigerator in dollars and cents.
Does anyone here like poppy playtine?

Answers

the answer is c because in order to change the percent into a decimal you move it two decimal places behind so that makes it .09 and so you go into a calculator and type in 1199(.09) and it give you your answer, 107.91

Answer:

C. $107.91

Step-by-step explanation:

Multiply the total by the tax amount:

1,199 * 0.09 = 107.91

Find the area of the circle. Round your answer to the nearest hundredth

Answers

Answer:

7.07

Step-by-step explanation:

Answer:

7.07 in²

Step-by-step explanation:

Given that,

→ Diameter = 3 in

→ Radius (r) = 3/2 = 1.5 in

Formula we use,

→ Area of circle = πr²

Then the area of circle will be,

→ πr²

→ 3.14 × 1.5 × 1.5

→ 7.065

→ 7.07 in²

Hence, the solution is 7.07 in².

HELP PLSSSSSSSSSSSSSSSSSSSSS

Answers

Step-by-step explanation:

multiple 7 by 4 and the by 4 by 2 then the other by 5by2

What are the new coordinates of R' if the following image reflects over the y-axis?

a. (1, 6)

b. (-1, -6)

c. (-1, 6)

d. (-5, 6)

Answers

C.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer is B they reflects over the y-axis

To predict volcanic eruptions scientists may use a seismograph to detect small earthquakes out of the 169 active volcanoes in the U.S. about 130 are in Alaska. About how many active U.S. volcanoes are not is Alaska?

Answers

Answer:

39 active volcanoes.

Step-by-step explanation:

Subtract 169 (whole) from 130 (part). 9 - 0 = 9, 6 - 3 = 3, and 1 - 1 = 0. Therefore, 169 - 130 = 39

39 (169-130) - a simple subtraction

Jenna wants to wrap a shipping box shaped like a rectangular prism. The box is 20 inches tall and has a square base with sides that each measure 3 inches. How much paper will she​ use?

Answers

Answer:

23 inches

Step-by-step explanation:

258in squared of wrapping paper.

Explanation:

For this question, we are trying to find the surface area of the rectangular prism, not the area inside the rectangular prism because we are wrapping the box up.

So, If we break up the rectangular prism, we will get 4 rectangles that are 20 inches by 3 inches, and 2 squares (the base and the top) that are 3 inches by 3 inches.

What we have to do know is find the area of all these pieces, then add them together.

So for the 4 rectangles:

A = l x w
= 20 inches x 3 inches
= 60 inches

Since there’s 4 rectangles we do:
60 x 4 = 240 inches

For the 2 Squares:

A = l x w
= 3 inches x 3 inches
= 9 inches

since there’s 2 squares we do:
9 x 2 = 18 inches



Then we can add these totals up for the total surface area:

240 + 18 = 258 inches squared

What is the measure of ABC?

Answers

Answer:

40-10 degrees

Step-by-step explanation:

The populations of two cities after t years can be modeled by -150t+50,000 and 50t+70,0000 . What is the difference in the populations of the cities when t=4

Answers

Answer:

650,350

Step-by-step explanation:

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