12cm and 9cm respectively, find its length. (एउटा कोठाको चार भित्ताको क्षेत्रफल 420 वर्ग
The area of four walls of a room is 420 sq. cm. If the length and breadth of the room are
area of four walls of the room? (परिमिती 32 साम
कोठाको चार भित्ताको क्षेत्रफल कति होला?)
सेमि छ । यदि उक्त कोठाको लम्बाई र चौडाई क्रमशः 12cm र 9 cm भए उचाई पत्ता
लगाउनुहोस ।​

Answers

Answer 1

Given Length of Cuboid = 12cm

Given Breadth of Cuboid = 9cm

Given height of Cuboid = 8cm

Total Surface area of cuboid = 2(lb + bh + hl)

where, l stands for legth of the cuboid, b stands for breadth of the cuboid and h stands for height of the cuboid.

Put the given values of l,b and h in the formula

=> Total surface area of cuboid = 2((12×9)+(9×8)+(8×12))

=> 2(108 + 72 + 96)

=> 2(180 + 96)

=> 2 × 276

=> 552 sq. cm is the total surface area of cuboid


Related Questions

Let f(x) = 3x + 2 and g(x) = - 2x + 1 Find f(g(- 2))
is it

a: -7
b: 9
c: 17
d: 0​

Answers

Answer:

(c). 17

Step-by-step explanation:

f(g(x)) = 3( - 2x + 1 ) + 2 = - 6x + 5

f(g(- 2)) = - 6( - 2 ) + 5 = 17

Perrin uses 24 ounces of milk in a recipe. How many cups is 24 ounces?

???​

Answers

1 cup is 8 ounce
24/8 = 3 cup

Can someone help me with this

Answers

Answer:

1. isosceles 2. Scalene 3. Equilateral 4. Equilateral

Step-by-step explanation:

To estimate a proportion of students with a grade point average of 3.7 and higher in a college, a random sample of 200 students was taken and the number of successes counted to be 35. The 95% confidence interval for a population proportion is:

Answers

Answer: [tex](0.1481323,\ 0.2018677)[/tex]

Step-by-step explanation:

The confidence interval for population proportion :

[tex]\hat{p}\pm z^*\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}[/tex] , where n= sample size, [tex]\hat{p}[/tex] = sample proportion , z*= Critical  z-value.

Let p = population proportion of successes.

Given: n= 200 , [tex]\hat{p}=\dfrac{35}{200}=0.175[/tex]

Critical z value for 95% confidence = 1.96

The 95% confidence interval for a population proportion is:

[tex]0.175\pm (1.96)\sqrt{\dfrac{(0.175)(1-0.175)}{200}}\\\\=\ 0.175\pm (1.96)\sqrt{0.000721875}\\\\= 0.175\pm (1.96)(0.0268677)\\\\=(0.175-0.0268677,0.175+0.0268677)\\\\= (0.1481323,\ 0.2018677)[/tex]

Required confidence interval: [tex](0.1481323,\ 0.2018677)[/tex]

Matt received change totaling 1.85 in nickels,dimes, and quarters. He recieved at least one coin of each type. What is the least number of coins he could of recieved

Answers

Answer:

6 quarters 2 dime 3 nickels

Step-by-step explanation:

Does the ratio 4/7 to 8/9 has a unit rate of 9/14

Answers

Answer:

true

Step-by-step explanation:

4/7 = 8/9

= 4*9/7*8

= 36/56

= 2*2*3*3/2*2*2*7

= 9/14

proved

Change 10/25 to a decimal

Answers

Answer:

0.4

Step-by-step explanation:

→ Convert fraction to a denominator of 100

10 / 25 ⇔ 40 / 100

Answer:

0.4

Step-by-step explanation:

An easy way to do this is to get the fraction over 100

So, multiply the fraction by 4 (because 25*4=100)

then you get 40/100 which is 0.4 in decimal form

what is 2/5 of 1 7/8

Answers

Answer:

0.75

Step-by-step explanation:

I think

Answer:

0.75 or something like that

Step-by-step explanation:

Help me please thanks :)

Answers

Answer:

I think its Distributive Property

Step-by-step explanation:

Hope this helped

Please help me with this, thank you

Answers

1. AD and BC bisects each other at E

1. Given

2. ABE ≈DCE

2. Vertical Angles

3. ABE≈DCE

3. SAS postulate

How many ?!!!!
?!!!
?!!

Answers

15

hope this helps you alot☺✌❤

i need to learncmy 9 year old how to multiply ​

Answers

Answer:

Step-by-step explanation:

get them some multiplication charts and use some examples like oreos or any type of cookies.

Sam computed a 95% confidence interval for μ from a specific random sample. His confidence interval was 10.1 < μ < 12.2. He claims that the probability that μ is in this interval is 0.95. What is wrong with his claim?
A) Either μ is in the interval or it is not. Therefore, the probability that μ is in this interval is 0.95 or 0.05.
B) A probability can not be assigned to the event of μ falling in this interval.
C) Either μ is in the interval or it is not. Therefore, the probability that μ is in this interval is 0 or 1.
D) The probability that μ is in this interval is 0.05.

Answers

Answer: C) Either μ is in the interval or it is not. Therefore, the probability that μ is in this interval is 0 or 1.

Step-by-step explanation: A 95% Confidence interval shows that there is a 95% confidence that the true parameter is between the lower and upper limits.

A CI is not a probability that the true parameter is in between the interval. The true parameter is either in the interval or not.

So, probability of falling between the limits is 0 (no chance of being in this interval) or 1 (100% possibility of being in this interval).

Then, "either μ is in the interval or it is not. therefore, the probability that μ is in this interval is 0 or 1." is correct.

3 1

-- + -- =

4 8


Pls answer quickly

Answers

Answer:

79

Step-by-step explanation:

2n²-6n+5 for n=-3 pls help me

Answers

Answer:

41

Step-by-step explanation:

2n²-6n+5

2(-3)²-6(-3)+5

2(9)+18+5

18+18+5

36+5

41


[tex](a) { - (b)}^{2} [/tex]

Answers

Answer:

 a - b2

Step-by-step explanation:

STEP  1 :

Trying to factor as a Difference of Squares:

1.1      Factoring:  a-b2  

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check :  a1   is not a square !!

Ruling : Binomial can not be factored as the difference of two perfect squares

Final result :

 a - b2

HOPE THIS HELPS!

PLEASE MARK BRAINLIEST! :)

Solve the system of equations.
3y + 10x - 54 = 0
5y - 2x - 34 = 0
2 =
y =

Answers

Answer:

y=3 x=8  (8,3)

Step-by-step explanation:

This table shows a linear relationship. x 5 6 7 8 9 y 33 39 45 51 57 Based on the information in this table, which equation can be used to model the relationship between x and y? y = 3x + 6 y = 6x + 3 y = 3x y = 6x

Answers

Answer:

y=6x+3

Step-by-step explanation:

Which represents a unit rate the cost of cat food $36 per 3 bag, the cost of orange juice is $3 per jug, the cost of photocopies is $1 per 10 pages, the cost of roses is $50 per dozen

Answers

Answer:

Its definitely 23$ is equally into 33$ and if its add it will be €23 and then you will add some randomly number and plus it to 23 and 13 is the answer thank me later

15% of 24% of $3500 is $___?

Answers

Answer:

126

Step-by-step explanation:

Answer:

126

Step-by-step explanation:

24% of 3500=840

15% of 840=126

The altitude of Death Valley, California, is 282 feet below sea level. A hot air balloon is launched from the bottom of Death Valley and rises at a rate of 10 feet per second. After 12 seconds, the balloon captain lowers the balloon 15 feet. What is the altitude of the hot air balloon after being lowered?

Answers

The altitude is 177 feet below sea level after being lowered.

The balloon rises 120 feet after 12 seconds and then is dropped 15 feet. So 120 - 15 = 105. And 282 - 105 = 177

Use the diagram to find the length. PB is the perpendicular bisector of AC. QC is the perpendicular bisector of BD. AB = BC = CD.
 Given BD = 16 and PC = 10, find PB.
PB =

Answers

Answer:

6 units

Step-by-step explanation:

BC = BD/2 = 8

PB² + 8² = 10²

PB² = 100 - 64 = 36 ⇒ PB = 6 units

The length of PB = 6 units

Here, PB is the perpendicular bisector of AC and QC is the perpendicular bisector of BD.

AB = BC = CD

Given that BD = 16 and PC = 10

What is Pythagoras theorem?

Pythagoras theorem is well known geometric theorem that the sum of the squares on the legs of a right triangle is equal to the square of the hypotenuse.

Here, BD = 16 and AB = BC = CD

⇒ BC = BD/2 = 16/2 = 8

And, PC = 10

Now using Pythagoras theorem:

[tex]PC^{2} =PB^{2} + BC^{2}[/tex]

[tex]10^{2} =PB^{2} + 8^{2}[/tex]

[tex]PB^{2} + 64 = 100\\PB^{2} = 100 - 64\\PB^{2} = 36\\PB = \sqrt{36}\\PB = 6[/tex]

Hence the length of PB = 6 Units

Learn more about the Pythagoras theorem visit:

https://brainly.in/question/2829237

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What is the domain of y = sqrt(x + 7) + 5 ?

Answers

Answer:

Step-by-step explanation:

İnside the root cannot be negative so x+7 at least equal to 0 so x is at least-7 so the answer is bigger or equal to -7

Answer:

the actual answer is y>=5 or b

Step-by-step explanation:

edge 2020

Mr. Barnes hired a plumber to fix a leak. The total cost, in dollars, that the plumber charges for a job can be modeled by the function
p() = 45 +35x, where x represents the time, in hours, that the plumber used to complete the job.
Mr. Barnes budgeted $220 to pay the plumber for the job.
After how many hours will the cost of the job exceed Mr. Barnes's budget?

Answers

Answer:

After 5 hours

Step-by-step explanation:

Given

[tex]p(x) = 45 + 35x[/tex]

Required

Determine what time the budget would exceed $220

To do this, we simply substitute 220 for p(x)

[tex]220 = 45 + 35x[/tex]

[tex]220 - 45 = 35x[/tex]

[tex]175= 35x[/tex]

Solve for x

[tex]x = 175/35[/tex]

[tex]x = 5[/tex]

So, Mr. Barnes would exceed his budget after 5 hours

A table is made using the following two patterns.
Pattern x: Starting number: 1, Rule: add 1
Pattern y: Starting number: 5, Rule: add 5
Complete the table for the given patterns.
x y
1 5

Answers

Answer:

The required table will be

x       y

1        5

2       10

3       15

4       20

5       25

Step-by-step explanation:

We are given 2 patterns

Pattern x: Starting number: 1, Rule: add 1

Pattern y: Starting number: 5, Rule: add 5

We need to complete the table for given patterns

x       y

1        5

The second number for x according to pattern will be: we will add 1 to the previous number i.e 1+1 =2

The third number for x according to pattern will be: we will add 1 to the previous number i.e 2+1 =3

The second number for y according to pattern will be: we will add 5 to the previous number i.e 5+5 =10

The third number for y according to pattern will be: we will add 5 to the previous number i.e 10+5 =15

So, the required table will be

x       y

1        5

2       10

3       15

4       20

5       25

As we are not given how much we need to fill table. I am adding 4 values for x and y.

what dose 3, 3 in the table indicate??? plzzz helppppp ​

Answers

Step-by-step explanation:

it indicates f(x) and g(x)

Answer:

3,3 is a placment in a graph

Step-by-step explanation:

Please help me thank you.

Answers

Answer:

-4+2

Step-by-step explanation:

The equation of the line would be: y = 1

4x + 5y = -30
slope intercept form

Answers

Answer:Y=4/5x-6







Explanation:

Slope intercept form of the equation 4x + 5y = - 30 is written as,

⇒ y = - 4/5x - 6

What is Equation of line?

The equation of line in point-slope form passing through the points

(x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

We have to given that;

The equation is,

⇒ 4x + 5y = - 30

Now, We know that;

Slope intercept form of the equation is,

⇒ y = mx + c

Here, The equation is,

⇒ 4x + 5y = - 30

Subtract 4x both side,

⇒ 4x + 5y - 4x = - 30 - 4x

⇒ 5y = - 4x - 30

Divide by 5 both side, we get;

⇒ y = - 4/5x - 6

Hence, The Slope intercept form of the equation is,

⇒ y = - 4/5x - 6

Learn more about the equation of line visit:

https://brainly.com/question/18831322

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Arianna is deciding between two different movie streaming sites to subscribe to. Plan A costs $32 per month plus $1 per movie watched. Plan B costs $7 per month plus $2 per movie watched. Let AA represent the monthly cost of Plan A if Arianna watches xx per month, and let BB represent the monthly cost of Plan B if Arianna watches xx movies per month. Write an equation for each situation, in terms of x,x, and determine the number of monthly movies watched, x,x, that would make the two plans have an equal monthly cost.

Answers

Answer:

25 movies

Step-by-step explanation:

First, create the monthly costs for both plans:

Plan A:

A = x + 32

Plan B:

B = 2x + 7

Set these two expressions equal to each other, and solve for x:

x + 32 = 2x + 7

32 = x + 7

25 = x

So, the two plans will have an equal monthly cost after 25 movies.

Answer:

25 movies watched

Step-by-step explanation:

Where x is movies watched

AA = 1x + 32

BB = 2x + 7

Convert as indicated.
108 ounces to pounds

Answers

Answer:

108 ounces is equal to 6.75 pounds.

Step-by-step explanation:

Answer:

Your answer is: 6.75 pounds

108 ounces equal to about 7 pounds if you round.

Step-by-step explanation:

Hope this helped : )

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