ten friends scored the following marks in their end of year maths exam: 23 37 45 49 63 63 70 72 82. What was the mean deviation of their marks

Answers

Answer 1

Answer:

50.4

Step-by-step explanation:

mean is just another way for syaing average

all the numbers added = 504

dived it by the number of scores

504 divided by 10 = 50.4


Related Questions

PLZ HELP

How many solutions does the equation 6p − 4p − 8 = −4 + 3 have? (5 points)

a
One

b
Two

c
None

d
Infinitely many

Answers

Answer:

D.infinitely many

try it you'll see

Your answer to this is D

Irene is going to read a 216-page book.

If she reads at a rate of 18 pages per day, how many days will it take her to read 1/
3 of the book

Answers

Answer:

4 days

Step-by-step explanation:

216/3 = 72

72/18 = 4

what is the product of (5x-8)(2x+6)

Answers

Answer:

10x^2+14x-48

Step-by-step explanation:

5x*2x=10x^2

5x*6=30x

-8*2x=-16x

-8*6=48

combine them and you'll get 10x^2+14x-48

Answer:

24x-48

HOPE THIS HELPS

-Todo <3

Step-by-step explanation:

5x*2x=10x

5x*6=30x

-8*2x=-16x

-8*6=-48

40x-16x=24x

24x-48

There are 6 roses in a vase of 11 flowers. The rest are daisies. What is the ratio of daises to roses?

Answers

Answer:

5:6

Step-by-step explanation:

1: Minus 11 (all flowers) by 6 (roses) = 5

2: Put daisies before roses, because it says daises to roses.

3: Your answer should be 5:6

Ur welcome

What is the median value of the data set shown on the line plot?

HELP ASAP

Answers

Answer:

Median: 6

Step-by-step explanation:

1,2,3,3,4,4,5,5,5,6,6,6,6,7,7,7,8,8,8,9,9,11

half of 22 (total numbers) is 11, on the 11th spot it is 6

Quadrilateral EFGH is similar to quadrilateral IJKL. Find the measure of side JK.
Round your answer to the nearest tenth if necessary.
H
7.5
G
L
29
K
a
11
E

Answers

Answer:

2+2=4

Step-by-step explanation:

if I just want to be here

A number is added to ⅔ of itself.
If the same number is doubled,
write down the final expression.​

Answers

Answer:

4/3

Step-by-step explanation:

⅔ + ⅔ = 4/3

When two parallel lines are cut by a transversal, _______________________ angles are supplementary

A.Corresponding angles

B. Alternate interior angles

C, Alternate exterior angles

D.Same side interor angles

Answers

Answer:

When two parallel lines are cut by a transversal, Alternate interior angles are supplementary.

Step-by-step explanation:

What value on the number line is the
same distance from 0 as -3.75

Answers

0 as 3.75 I think, I hope I helped

Answer:

3.75

Step-by-step explanation:

|-3.75|=3.75

Order the numbers by value.
LEAST to GREATEST

10
√99
√75
9
9.5​

Answers

Answer:

√75, 9, 9.5, √99, 10

Step-by-step explanation:

that's what I got

Help asap! No links or weird answers, please :(

The question and answer choices are in the picture below. The question is about scatter plots.

Answers

Answer: b

Step-by-step explanation:

im guessing

What are the solutions of x^2 - 2x +2 = 0?
A. X= i Or x= -i
OB. X= 2+ i or x = 2- I
O C. x = 1+i or x = 1-i
O D. x = 2i or x = -2i

Answers

Answer:

C

Step-by-step explanation:

Given

x² - 2x + 2 = 0 ( subtract 2 from both sides )

x² - 2x = - 2

To solve use the method of completing the square

add ( half the coefficient of the x- term)² to both sides

x² + 2(- 1)x + 1 = - 2 + 1

(x - 1)² = - 1 ( take the square root of both sides )

x - 1 = ± [tex]\sqrt{-1}[/tex] = ± i ( add 1 to both sides )

x = 1 ± i , then

x = 1 + i or x = 1 - i → C

Someone please help me
Solve 6a + 5a= -11

Answers

Answer:

hi

Step-by-step explanation:

6a+5a= -11

11a= -11

a= -11/11

a= -1

hole it helps

have a nice day

Choose the correct future tense form of the verb in parentheses.

Ellos (saber) la verdad.

sabré
sabrás
sabremos
sabrán
.

Answers

Answer:

The correct future tense would be sabrán, which basically means they will know in English.

Step-by-step explanation:

Since the question states "Ellos" (they) as in a group of people, sabrán would be the right one.

These words (in order) basically roughly mean

I will know

You will know

We will know

THEY will know

Answer:

D. sabrán

Step-by-step explanation:

The form of the verb, saber, has to match the form of the pronoun that is doing the action. "Ellos" is doing the action, and ellos means "they". The "they" form of a verb ends with an "en" or "an". So your best answer is sabrán.

Please click the heart if this helped.

Hiii, I would love it if you can help me with these! I tried my best but it's really hard and I don't understand this.

Answers

Answer:

3rd Answer =Option A is the Correct Answer

Step-by-step explanation:

Hi!

3. Maria bought 5 bottles of juice, each being 750 milliliters. She bought 3,750 milliliters of juice in total (750 x 5 = 3750). 3750 milliliters is equal to 3.75 liters. Lori bough 4 liters of juice. So, the correct sentence is A. Lori bought 0.25 liter more juice than Maria.

4. The trail is 3 [tex]\frac{1}{4}[/tex] miles long. Converted to feet, 3 [tex]\frac{1}{4}[/tex] miles is 17,160 feet. Your answer would be D.

Hope this helps! I would appreciate brainliest, if not that's okay!!

-2 log5 (7x) = 2........

Answers

Answer:

Answer is x= 1/35

Step-by-step explanation:

......

[tex]e^{4x-5} -7 = 11, 243[/tex]

Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.

Answers

Answer:

x = 3.58

Step-by-step explanation:

[tex]e^{4x - 5}[/tex] - 7 = 11243[tex]e^{4x - 5}[/tex] = 11250ln [tex]e^{4x - 5}[/tex] = ln 112504x - 5 = ln 112504x - 5 = 9.33 (rounded)4x = 14.33x = 14.33 / 4x = 3.58 (rounded)

Answer:

x = 3.58 (2 d.p.)

Step-by-step explanation:

Given equation:

[tex]e^{4x-5}-7=11243[/tex]

Add 7 to both sides:

[tex]\implies e^{4x-5}-7+7=11243+7[/tex]

[tex]\implies e^{4x-5}=11250[/tex]

Take natural logs of both sides:

[tex]\implies \ln e^{4x-5}=\ln 11250[/tex]

[tex]\textsf{Apply the power law}: \quad \ln x^n=n \ln x[/tex]

[tex]\implies (4x-5)\ln e=\ln 11250[/tex]

As ln(e) = 1:

[tex]\implies 4x-5=\ln 11250[/tex]

Add 5 to both sides:

[tex]\implies 4x-5+5=\ln(11250)+5[/tex]

[tex]\implies 4x=\ln(11250)+5[/tex]

Divide both sides by 4:

[tex]\implies \dfrac{4x}{4}=\dfrac{\ln(11250)+5}{4}[/tex]

[tex]\implies x=\dfrac{\ln(11250)+5}{4}[/tex]

Using a calculator:

[tex]\implies x=3.582030852...[/tex]

Therefore:

[tex]\implies x=3.58\:\: \sf (2 \: d.p.)[/tex]

Learn more about log laws here:

https://brainly.com/question/28016999

https://brainly.com/question/27977096

PLZ HELP! BRAINLIEST IS ON THE LINE!!!!!!!!!!!!!!!!

Answers

-97.7-36.50.06

.. .. ..

Answers:

-97.7-36.50.06

Hope this helps!

--Applepi101

I need someone who will answer all five questions correctly. Give out 100 bonus points for who will answer all 5 correctly

Answers

Answer:

What're the questions??

Step-by-step explanation:

why did this just now show up for me when it was in 2021 bro

Can someone fill this out? I am very busy today and I need someone to fill this out.

Answers

Answer:

Uh i think its a uhhh carrot

Step-by-step explanation:

o Explain "set"
2 list the tyres Or Set
3 What is a Circle?
a List the properties of a Circle
Сл​

Answers

Answer:

3) A circle Is a locus of a moving point which moves from equal distance in q fixed path.

Carlos went and purchased a new mattress for $644.80, including tax. He
made a down payment of $200 and plans to pay the balance off in 5 equal
monthly payments. What will Carlos monthly payment be for this mattress?
a $88.96
X $168.96
C$7413
d. $128.96

Answers

664.80
- 200
= 444.80

444.80/5 months = A) 88.96

Felix invested $10,000 into a retirement account in 2010. He then projected the amount of money that would be in the account for several years assuming that the interest will compound continuously at an annual rate. Later, when he looked back at the data, he could not recall the annual he used for the projections. Use the data below to determine the annual rate as a percent. (Remember use A=Pert for continuous interest problems where P=initial amount invested, r is the interest rate as a decimal and t is the time in years).

Answers

Answer:

0.068% or 6.8% this will be your final answer

PLEASEEEEE HELPPPPPPP!!!!!

Answers

Answer:

(-4.5, 1.5)

Step-by-step explanation:

Please look at the screenshot

Answers

Given:

The figure of circle E. [tex]m\angle ABD=(11x-3)^\circ,m\angle ACD=(8x+15)^\circ[/tex].

To find:

The measure of arc AD.

Solution:

We know that the inscribed angles on the same arc are congruent and their measures are equal.

[tex]\angle ABD[/tex] and [tex]\angle ACD[/tex] are inscribed angles on the same arc AD. So,

[tex]m\angle ABD=m\angle ACD[/tex]

[tex]11x-3=8x+15[/tex]

[tex]11x-8x=3+15[/tex]

[tex]3x=18[/tex]

[tex]x=6[/tex]

Now,

[tex]m\angle ABD=(11x-3)^\circ[/tex]

[tex]m\angle ABD=(11(6)-3)^\circ[/tex]

[tex]m\angle ABD=(66-3)^\circ[/tex]

[tex]m\angle ABD=63^\circ[/tex]

We know that the intercepted arc is always twice of the inscribed angle.

[tex]m(Arc(AD))=2\times m\angle ABD[/tex]

[tex]m(Arc(AD))=2\times 63^\circ[/tex]

[tex]m(Arc(AD))=126^\circ[/tex]

Therefore, the measure of arc AD is 126 degrees.

DONT SEND LINKS Find the value of y given the value of x:


Y=7x, x=-5

Answers

Answer:   x = -5

Step-by-step explanation:

Solve equation [2] for the variable  x

Plug this in for variable  x  in

Solve equation [1] for the variable  y  

The answer is -35. To find this, just multiply -5 and 7.

PLEASEEE HELP I WILL GIVE U BRAIN THING IF ITS CORRECT

Answers

Cant see photo sorry!!

which expression is equivalent to 2x+x^2+3x|+5x^2-10x?
(A) x
(B) x^2
(C) -5x+6x^2
(D) 15x+6x^2

Answers

Answer is (C)
Step by step exploration

please help me solve 8x+2y=32 and 10x-5y=-20

its solve by subsitution
please include steps and answers

Answers

Answer:

(2,8)

x = 2

y = 8

Step-by-step explanation:

The steps are shown in the picture

what is the highest fractions 2/4 5/6 3/2 1/9 4/5 8/2 ​

Answers

Answer:

8/2

eight halves

Step-by-step explanation:

please mark this answer as brainliest

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