PLZ HELP ME!!!! maths isn't my best subject. brainiest to be given

PLZ HELP ME!!!! Maths Isn't My Best Subject. Brainiest To Be Given

Answers

Answer 1

Answer:

4

30

8

Step-by-step explanation:

students in the group i would get 30 by adding all the frequency column together

the mean is 40/5 which is 8

the range of marks is the difference between the smallest number and the greatest number in the set so the difference of 6 and 10 which is 4

Answer 2

Answer:

Ans no.1) 4

Ans.no.2) 30

Ans.no3) 8

Step-by-step explanation:

no.1) to find a range we have to do subtract from the highest mark and the smallest mark

no.2) to find the total student you have to add up the frequency

no.3) to find the range first add up all the mark and count the total no. ( 5 ) then divide it by the sum of the no. and the count of no.


Related Questions

Attachment no explanation only answer

Answers

Answer:

y=x+1

Step-by-step explanation:

The slope intercept form of a line is y=mx+b, where m is the slope of the line and b is the y intercept. Since the line rises one unit for every one unit it moves to the right, it has a slope of 1. Since it intersects the y axis at the point (0,1), it has a y intercept of 1. Therefore, the equation is y=x+1. Hope this helps!

Answer:

Hey!

Y= x + 1 is your answer!

Step-by-step explanation:

hope this helps!

I’m really stuck on this ☹️

Answers

Answer:

2 adults and 2 senior citizens.

Step-by-step explanation:

There are 8 children, which means we need to take the number that represents the children from the graph which is 4 and multiply it by the 8 children going.

1. 4x8=32

So we have found the total for the 8 children, however there are 4 spots left

We take the total from the #1 and add 2 adults and 2 senior citizens.

32+6+6+3+3=50

We then come to the conclusion of 2 adults and 2 seniors.

the number 301 can be written as?​

Answers

Answer:

three hundred and one

Step-by-step explanation:

This wasn't very clear..

Answer: the number 301 can be written as three hundred one.

Step-by-step explanation: the number 301 can be written as three hundred one. To find a, take the number and move a decimal place to the right one position. Now, to find b, count how many places to the right of the decimal. There are 2 places to the right of the decimal place.

You want to have your carpet cleaned in your living room which measures 11’ by 14’. A company charges $2.75 per square foot and company B charges $450 per room. Which company should you hire to get a better deal?

Answers

Answer:

Since, company A charge of $423.5 is less than company B charge of $450

Hence,

Company A should be hired to get the better deal.

Step-by-step explanation:

Dimension of room: 11 * 14 foot

Area of rectangle is given by length * width

Thus,

area of room using above formula = 11*14 square foot = 154 square foot

For company A

charge  for 1 square foot = $2.75

Charge for room = charge  for 1 square foot * area of room

                           = 2.75 * 154 = 423.5

Thus, Total money charged by company  A as calculated above is $423.5

Given,

company B charges $450 per room

Since, company A charge of $423.5 is less than company B charge of $450

Hence,

Company A should be hired to get the better deal.

Answer:

Company B

Step-by-step explanation:

Write the equation in both factored and standard form?

Answers

Answer:

Factored Form:        x = y/2 + 7

Standard Form: 2x - y = 14

Step-by-step explanation:

y
6
A
Which graphs are inverses of one another?
Graph A and B
Graph A and C
O Graph B and C
none of the graphs shown
С
DONE
&
6
Intro

Answers

Answer: Graph A and C

Step-by-step explanation:

Answer: a&c

Step-by-step explanation:

2020edg

Can someone please help me ?

Answers

Answer:

yes3244

Step-by-step explanation:

i will help 5642

Kyle drops a ball from a height of 15 feet above the ground. The function h = −16t^2 + 15 gives the height h of the ball (in feet) after t seconds. Graph the function. Then determine the approximate time the ball hits the ground.

Answers

Answer:

The ball will hit the ground at 0.968 seconds.

Step-by-step explanation:

Please refer to the attached graph in the answer area.

The given equation of height according to input variable time 't' is:

[tex]h = - 16 t^{2} + 15 ...... (1)[/tex]

h is in feet

t is in seconds

Both the values 't' and 'h' will be positive. (Time and height can never be negative)

To determine the time, at which the ball hits the ground, i.e. the height becomes 0.

Putting value of h = 0 in equation (1)

[tex]0 = - 16 t^{2} + 15 \\\Rightarrow t^{2} = \dfrac{15}{16}\\\Rightarrow t = \sqrt{\dfrac{15}{16}}\\\Rightarrow t = 0.968\ sec[/tex]

Hence, the time at which the ball hits the ground is 0.968 seconds.

How many days will it take a culture of bacteria to increase from 2000 to
50,000? Use k = 0.657.​

Answers

Answer:

5 days

Step-by-step explanation:

Given: bacteria to increase from 2000 to  50,000

To find: Number of days that a culture of bacteria will take to increase from 2000 to  50,000

Solution:

The growth of bacteria is represented by the equation: [tex]P(t)=P_0e^{kt}[/tex]

Here, t denotes time, k denotes growth rate and [tex]P_0[/tex] denotes initial population of bacteria.

Take [tex]P_0=2000[/tex], [tex]P(t)=50000[/tex] and [tex]k=0.657[/tex]

[tex]50000=2000e^{0.657t}\\\frac{50000}{2000}=e^{0.657t}\\25=e^{0.657t}\\0.657t=\ln 25\\t=\frac{\ln 25}{0.657}=4.9\approx 5\,\,days[/tex]

In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?

A. 8/21

B. 2/7

C. 1/3

D. 2/3

Answers

Answer:

b 2/7

Step-by-step explanation:

Because there is a 6/21 chance and 2/7=6/21

state the coordinates of the endpoints of a line segment that is not parallel to either axis, and does not intersect either axis.

Answers

Answer:

Step-by-step explanation:

(2, 3) and (5, 6) are the endpoints of a line segment that is not parallel to either axis and does not intersect either axis.

What is  coordinate of  point line?

An ordered pair contains the coordinates of one point in the coordinate system. A point is named by its ordered pair of the form of (x, y). The first number corresponds to the x-coordinate and the second to the y coordinate.

What is line segment?

A line segment is a piece or a part of line having two end points.

Since, a line segment is parallel to the either one axis if its one coordinate point is zero, whether it's y or x.

So for not parallel to either axis and does not intersect either axis  we will choose those points which are not zero.

Therefore,

The coordinates of the end points of a line segment that is not parallel to either axis and does not intersect either axis will be (2, 3) and (5, 6).

Similarly, you can use any point using this concept like (7,9) ad (2,3) and many.

Learn more about line segment here:

https://brainly.com/question/25727583

#SPJ2

Which of the following lists of ordered pairs is a function?
A) (1,1), (2,2), (3,1), (3,2)
B) (-2,3), (2,4), (-3,6), (3,7)
C) (0,3), (-1,4), (1,6), (-1,7)
D) (2,5), (3,-4), (4,7), (2,2)

Answers

Answer:

B

Step-by-step explanation:

its B because the input for every pair has the same output, if the input had different outputs it would be considered not a function. Imagine it like a vending machine, if you were to press 3 on the vending machine you would get whatever 3 was, but if you pressed 3 and you get something else besides whatever 3 is it would be broken. I hope this was helpful, I struggled learning this stuff but now I got it down lol.

Which cannot be the angle measurements of triangle ABC?

Answers

Answer: D is incorrect

Step-by-step explanation:

x^2-2xy+y2 is a polynomial of ___________variable?

Answers

Answer:

x and y

Step-by-step explanation:

Answer:

2 variable x and y ( varable are the symbol that can take any balue in a expression)

1 of 5
What is the nth term rule of the quadratic sequence below?
8, 16, 26, 38, 52, 68, 86,...
Tn=

Answers

Answer:

[tex]n^2+5n+2[/tex]

Step-by-step explanation:

Given the sequence

8, 16, 26, 38, 52, 68, 86,...

The nth term of a quadratic sequence will take the form:

[tex]an^2+bn+c[/tex]

Step 1: Find the difference between each term

The differences are: 8,10,12,14,...

Step 2: Find the differences between the differences

We notice an addition of 2, so the second difference is 2.

Step 3:

Take the half of the second difference to obtain a.

2/2=1

Therefore: a=1

The sequence for now is: [tex]n^2+bn+c[/tex]

Step 4: Find [tex]T_n-n^2[/tex]

[tex]T_1=8, T_1-1^2=8-1=7\\T_2=16, T_2-2^2=16-4=12\\T_3=26, T_3-3^2=26-9=17[/tex]

We notice that [tex]T_n-n^2[/tex] forms a linear sequence 7,12,17

We can write this as 2+5n

Therefore, Our nth rule for the quadratic sequence is therefore: [tex]n^2+5n+2[/tex]

Please help with math will mark brainiest!!!!

Answers

Answer:

[tex]54.5 \: ft^2 [/tex]

Step-by-step explanation:

Area of the figure = Area of rectangle + Area of both triangles

[tex]= 11\times 4 +\frac{1}{2} \times 3 \times 4 +\frac{1}{2} \times 3 \times 3\\=44 + 3\times 2+ 3\times 1.5\\= 44 + 6 + 4.5\\=54.5 \: ft^2[/tex]

Remove the bracket a-2(b-3a). *

4 points

a-2b+6a

-2a+7b

7a+2b

-7a-2b

Answers

Your answer would be the first one , a - 2( b - 3a). When you remove the brackets , first you multiply 2 and 3 , you get six , change the sign to an addition sign so you get a - 2b + 6a

If g (x) is the inverse of f(x) and f (x) =4x+12, what is g(x)?

Answers

Answer:

y= x/4 - 3

Step-by-step explanation:

plz help with this question fast

Answers

Answer:

The answer is C; y=x+2

Step-by-step explanation:

y=mx+b (3, 5)

5=1(3)+b

5=3+b

subtract 3 from both sides of the equation

2=b

equation; y=mx+b

                y=x+2

Answer:

C. y = x + 2

Step-by-step explanation:

→You can figure this out by using the point-slope form:

[tex]y-y_1=m(x-x_1)[/tex]

[tex]y-5=1(x-3)[/tex]

→Distribute the 1 to (x - 3):

y - 5 = x - 3

→Add 5 to both sides:

y = x + 2

give the equation for the new circle obtained by translating the circle (x-2)^2+(y+4)^2=36 by 6 units to the right and 4 units up explain and show your work please

Answers

Answer:

equation for the new circle is;

(x - 8)² + y² = 36

Step-by-step explanation:

There are two types of translations and they are translation horizontally and vertically. Combining both of them in the context of this question, to translate a circle 6 units to the right and 4 units up, we take our equation,

(x - 2)² + (y + 4)² = 36 and subtract 6 from the x - term and 4 from the y - term to get the equation of the new circle.

This gives us;

(x - 2 - 6)² + (y + 4 - 4)² = 36

This gives;

(x - 8)² + y² = 36

Factor completely 2x2 + 6x − 80. (2x − 5)(x + 8) (2x − 10)(x + 8) 2(x − 5)(x + 8) 2(x − 10)(x + 8)

Answers

Answer:

2(x+8)(x-5)

Step-by-step explanation:

2x^2 + 6x − 80

Factor out a 2

2(x^2 + 3x − 40)

What 2 numbers multiply to -40 and add to 3

8*-5 = -40

8+-5 = -3

2(x+8)(x-5)

The right answer is 2(x-5)(X+8)

please see the attached picture for full solution

Hope it helps

Good luck on your assignment...

The sum of three numbers is 54. The third number is 2 times the second. The second number is 10 more than the first. What are the numbers?

Answers

Answer:

8, 18 and 36 respectively.

explanation

sum=54

1st number=x

2nd number=x+10

3rd number =2(x+10)=2x+20

x+x+10+2x+20=54

put the liketerms together

x+x+2x=54-10-20

4x=24

divide both sides by 4 to get

x=8

Input the other values

someone tell me what this is

Answers

Answer:

D. y/-1 = f(x)

Step-by-step explanation:

because if you were to move the -1 to the other side by multiplying both sides by -1, you would get f(x) times -1 which would give you the negative equivalent of the original equation f(x)

you can try it out in a graphic calculator like Desmos which is an online graphic calculator

Please at least thank if you found helpful

Need help ASAP it’s geometry!!

Answers

The answers are:

X=6

EF=34

FG=25

Answer:

EF = 34, FG = 25

Step-by-step explanation:

EG is the total of the two smaller segments, EF and FG.

Therefore:

8x-14 + 4x+1 = EG

8x-14 + 4x+1 = 59

Now we can solve this equation.

8x-14 + 4x+1 = 59

12x-13 = 59

12x = 72

x = 6

Now, we can plug in the values of x into the expressions for the lengths of EF and FG:

EF

8x-14

8(6)-14

48-14

= 34

FG

4x+1

4(6)+1

24+1

= 25

When you put your powerade into your refrigerator its temperature is 48 F. If the refrigerator can cool drink at 3.75 F per hour, what will be the temperature of your Gatorade after 2 hours

Answers

Answer:

40.5

Step-by-step explanation:

3.75 * 2 = 7.50

48 - 7.50 = 40.5

Create your own ratio. Be sure to describe the ratio in words first and then write the ratio as a fraction

Answers

[tex]7:3[/tex]

The ratio of 7 to 3.

The ratio as a fraction would be:

[tex]\frac{7}{3}[/tex]

If an 8 hour work day includes a total break time of 22 1/4%, how many hours are used for breaks?

Answers

Answer:

1 39/50 hours. This is equivalent to 1.78 hours.

Step-by-step explanation:

The sum of the hours of work and the hours for break gives the work day hour which has been given as 8 hours.

Furthermore, given that the break time is 22 1/4%, the number of hours for break

= 22 1/4% × 8 hours

= 89/400 × 8

= 1 39/50 hours

Billy Bob has a fish tank shaped like a rectangular prism
that is 20 cm by 20 cm by 16 cm. What is the volume of the
tank? Show your work.

Answers

Answer:

[tex]6400{cm}^{3} [/tex]

Step-by-step explanation:

Since this is a rectangular prism, simply multiply all the lengths together:

20×20×16 = 6400

help me please! I NEED TO HAND IT IN NOW ​

Answers

Answer:

4n + 4

Step-by-step explanation:

Azhar - n years old now.

Last year he was  (n-1).

His mother was 4(n -1) last year.

Now his mother 4(n-1) + 1.

7 years later she will be 4(n - 1)  + 1 + 7 = 4n - 4 + 8 = 4n + 4

Help me please people

Answers

Answer:

y = 16x +8

Step-by-step explanation:

Per means for every so and so, and a fee is one-time thing, so 16 would be with x and 8 as the y (intercept)

Other Questions
"Rebecca walks 100 feet in a straight line. She then turns 20 degrees to her left and walks another 100 feet, and then turns 20 degrees to her left again. She continues this pattern until she reaches the point where she started. How far did she walk The use of steel was an important part of the industrial revolution which signifiesin uae sst which best describes a difference between prokaryotic and eukaryotic cells How long is the dna is found in a cells nucleus 10 benefits of a multidimensional assessment for older people with complex needs pls help!!will give the brainliest! What's the difference between who, whom, and whose? A square has a side length of 4a. One dimension is decreased by 5 and the other dimension is decreased by 5. Expand and simplify the expression that represents the area of the resulting rectangle Which words are synonyms for the word abstract as it is used in the following sentence? Check all that apply."I do not have time to read the whole article, so please give me an abstract.summarysummarizedigesttheoreticalbrief In the diagram below, AngleDAB and AngleDAC are adjacent angles.Lines A B, A D, and A C create two angle. The space between lines A B and A D is (2 x minus 10) degrees. The space between lines A D and A C is (x minus 20) degrees.If mAngleDAC = 25, what is mAngleDAB in degrees?What is mAngleBAC in degrees? Solve the system by graphing. (Enter your answers as a comma-separated list. If the system is inconsistent, enter INCONSISTENT. If the system is dependent, enter DEPENDENT.) x + y = 6 x y = 2 Need help with this problem! ASAP! Filmore has invested $10,000 in an account to help pay for his grandsons education. He expects the account to return 4.5% annually. Use the rule of 72 to estimate how long it will take the $10,000 to double in value. All of the regions on the map above are part of Siberia except ________. The measure of each interior angle of a regular polygon can be expressed as x-5 and the number of sides by 10x. Determine the following the number of degrees in each exterior angle Is the author of Lord Of The Flies saying human nature good or bad? Which of the following statements about the French and Indian War is true? a.) The English and French were allied against native tribes that occupied land because they wanted it for their own settlers. b.) Chances for an English victory looked bleak, as France had a significantly larger military and more native allies. c.) Though it took place in America and involved Native Americans, the war was largely directed from London and Paris. d.) Most of the fighting took place between rival native tribes on behalf of their English and French allies. A garage charges $24 an hour for labour. The garage charges Nigel $336 labour to replace the engine in his car. For how many hour labours was he charged? Someone help me with this plz what is the most important outcome of the treaty of paris