A hall measures 12 metres long,
10 metres wide and 4 metres high.
What is the surface area of the
walls?
A 480 m2
B 176 m2
C.88 m2
D. 416 m2​

Answers

Answer 1

[tex]\huge\sf\red{Answer : - }[/tex]

Given :-

Length of the hall = 12m

wide of the hall (Breadth) = 10m

Height of the hall = 4m

To Find :-

Surface area of the walls (Four walls area)

Formula :-

Four walls area of the hall = 2h(l+b)

where,

h = height

l = length

b = breadth

Solution : -

By substituting values according to the formula,

➙ 2 × 4m(12m + 10m)

➙ 8m(22m)

➠ 176m²

It's option B

Hence, The surface area of the walls is (B) 176m²


Related Questions

Aaron has three slabs of beeswax. He plans to melt them and use all of the wax to form 36 candles. If all the candles are the same size and weight, how much will each candle weigh?

Answers

Weight of slab of beeswax isn't given.

Assume slab of beeswax = 36 gram.

Answer:

3 gram

Step-by-step explanation:

Each slab of beeswax = 36 gram

Total weight of all 3 slabs = (3 * 36) = 108 g

Number of same-sized candles to make = 36

The weight of each candle will be ;

Total weight of slabs / number of candles

108 g / 36

= 3 grams

Add.
-7+ (-1) =
need asap

Answers

Answer:

The answer is -8

Divide. Write your answer as a fraction in simplest form. −7/2÷7/5=

Answers

The answer i got for this question in simplest form as a fraction is - 5/2

Solve 3^x + 6 = 3^4.

−2
4
6
10

Answers

Answer:

The answer is 4

Step-by-step explanation:

x

=

ln

(

75

)

ln

(

3

)

Decimal Form:

x

=

3.92994704

Answer: Take the logarithm of both sides of the equation to remove the variable from the exponent.

Exact Form:

x

=

ln

(

75

)

ln

(

3

)

Decimal Form:

x

=

3.92994704

Step-by-step explanation:

Out of the 20 students in Mrs. Green's class, 13 have a pet. What percent of the students in Mrs. Green's class have a pet? The percent of students in Mrs. Green's class that have a pet is

Answers

Answer:

65 %

Step-by-step explanation:

13/20 = 65/100

Answer:

65%

Step-by-step explanation:

20/100 =1/5

5*13=65

hi someone please help this is really urgent !!!

picture is attached pls help <3

Answers

Answer:

it can be answer that it could be posstive

help please!
Jackie deposited $315 into a bank account that earned 1.5% simple interest each year. No money was deposited into or withdrawn from the account.

How much money was in the account after ​3​ years?

Answers

Answer:

that is a whole lot of simple intrest

Choose the equation of the line through (4, -5) and perpendicular to 6x + 12y = 13.
A.y=-1/2x-3
B. y=1/2x-7
C. y=2x-13
D. None of these​

Answers

Answer:

C.) y=2x-13

Step-by-step explanation:

I need help with this please!! ​

Answers

Answer:

[tex] {6x}^{3} + {9x}^{2} - 18x + 3[/tex]

Step-by-step explanation:

1. Expand by distributing sum groups.[tex]3x( {2x}^{2} + 5x - 1) - 3( {2x}^{2} + 5x - 1)[/tex]

2. Expand by distributing terms.

[tex] {6x}^{3} + {15x}^{2} - 3x - 3( {2x}^{2} + 5x - 1)[/tex]

3.Expand by distributing terms.

[tex] {6x}^{3} + {15x}^{2} - 3x - ( {6x}^{2} + 15x - 3)[/tex]

4. Remove parentheses.

[tex] {6x}^{3} + {15x}^{2} - 3x - {6x}^{2} - 15x + 3[/tex]

5. Collect like terms.

[tex] {6x}^{3} + {15x}^{2} - {6x}^{2} ) + ( - 3x - 15x) + 3[/tex]

6. Simplify.

[tex] {6x}^{3} + {9x}^{2} - 18x + 3[/tex]

Thus. the answer is,

[tex] {6x}^{3} + {9x}^{2} - 18x + 3[/tex]

c = grocery store charges

Tax is 8% added to the charges.

Which expression shows the total charges with tax?

A. 1.8c
B. 1.08c

Answers

B because it is in the 10ths place

The total charge with tax will be 1.08c.

What is mean by Percentage?

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

Given that;

Grocery store charges = c

And, Tax is 8% added to the charges.

Now,

Since, Tax is 8% added to the charges.

Hence, The total charge with tax = c + 8% of c

                                                   = c + 8/100 × c

                                                   = c + 0.08c

                                                   = 1.08c

Thus, The total charge with tax = 1.08c.

Learn more about the percent visit:

https://brainly.com/question/24877689

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Abakery can make 100 pies in 2 hours.
How many hours will it take, if they
need to do 350 pies?

Answers

100/2 = 50 pies per hour
350/50 = 7 hours

Answer:

7 hours

Step-by-step explanation:

The bakery could bake 100/2 = 50 pies per hour.

To make 350 pies, the bakery requires 350/50 = 7 hours.

The answer is therefore 7 hours.


Work out the percentage change when a price of £400 is decreased to £225

Answers

Answer:

1.77%.

Step-by-step explanation:

The answer is 1.77%.

HOPE THIS IS CORRECT AND HELPS YOU!!!

Answer:

1.75%

Step-by-step explanation:

1.75%is correct answer

I’m doing triangles basically finding the sun of the sides

Answers

Answer:

funn what funn

Step-by-step explanation:

you soposde to be ban

x^2+3x+37=-7x
I'm supposed to complete the square but my teacher did not explain it well at all. It would be really great if you showed the steps to get the answer :)

Answers

Answer:

x= -74 or -84

Step-by-step explanation:

x^2+3x+37=-7x

x^2+3x+7x+37=0

x^2+10x+37=0

this convert to following

[tex]( - b + - \sqrt{ {b}^{2} } - 4 \times a \times c) \div 2 \times a[/tex]

-b= -(10), a= 1, c =37

according to that

x= -74 or x= -84

Someone help
Which is the correct algebraic expression for each phrase? 15 miles less than Devra biked
A. d + 15
B. d – 15
C. 15 – d
D. 15 + d

Answers

Answer:

i would say it’s b because it makes more sense rather than 15-d

Sorry about the handwriting I tried. But I need help

Answers

I don’t know much but all triangles add up to 180 so half of the triangle is 45, 45, and a 90 degree angle, adding these 3 numbers add to 180

For the expression 15-15z to have a negative​ value, what must be true about the value of ​z?

Choose the correct answer.

A. The value of z has to be 0.

B. The value of z has to be less than 1.

C. The value of z has to be greater than 1.

D.The value of z has to be negative.

Answers

Answer:

C. The value of z has to be greater than 1

Step-by-step explanation:

[tex]15 - 15z < 0 \\ - 15z < - 15 \\ 15z > 15 \\ z > 1[/tex]

Help! Find the measure of each angle indicated

Answers

Answer:

40 degrees

Step-by-step explanation:

Answer should be 40. Vertical angles dictate that it should be 36. Then if you find the full like with the 76, the other part is 104. Add 104 and 36, which gets you 140. A triangle is 180, so you subtract 140 from 180 and get 40.

PLEASE HELPP
in the table, y is a linear function of x. what is the value of y when x=0

Answers

Answer:

3

Step-by-step explanation:

by the way i love your profile picture

What is the area of a 3/4 yards and 5/6 yard rectangle?

Answers

Answer: 15/24

Step-by-step explanation:

A x B = 5/6 x 3/4 = 15/24

Roberto wrote the pattern shown below. What is the rule for following Roberto's pattern?
96, 48, 24,12

A. subtract by 48
B. divide by 2
C. multiply by 2
D. subtract by 42

Answers

Answer:

its b because

Step-by-step explanation:

24÷12 is 2 and if u do 12 × 2 and keep going u will get the next answer

Select the correct answer.
The slope of the function on the left is multiplied by p, and is added to the yIntercept to arrive at the function on the right. Which of the
following are the values for p and q?
A. p = -2 and q = -2
В. p=-2 and q = -4
C. P = 2 and q = -3
D. P = -2 and q = -3

Answers

Answer:

p = -2

q = -3

Step-by-step explanation:

Let us get the equation of the two graphs

General equation form is;

y = mx + b

m is slope and b is the y-intercept

For the first one;

y intercept is 1

So the equation is;

y = mx + 1

The x-intercept is -2

the value of y at the x-intercept is 0

0 = -2m + 1

1 = 2m

m = 1/2

so;

1/2 * p

p/2

q added to y-intercept;

q + 1

Let us get the equation of the second plot

y-intercept is -2

Equation is;

y = mx - 2

We can get slope using x-intercept

x-intercept is -2

0 = -2m - 2

2m = -2

m = -1

So;

p/2 = -1

p = 2 * -1 = -2

For the value of q;

q + 1 = -2

q = -2-1 = -3

Carlos wants to rent a car for the particular car you on gentle rental charges 185 per week plus $0.25 per mile driven rental charges a flat fee of 275 per week what is the number of miles driven so that rented from dental rental cause carlos less than renting from rental giant

Answers

Answer:

The indifference point is 360 miles.

Step-by-step explanation:

Giving the following information:

Rental 1:

Total cost= 185 + 0.25*x

x= miles driven

Rental 2:

Total cost= $275

Now, we need to equal both formulas and isolate x:

185 + 0.25x = 275

0.25x = 90

x= 90/0.25

x= 360

The indifference point is 360 miles.

y = 2x
-6x + 3y = 16
Solve please

Answers

Answer:

(x,y) = ∅

Step-by-step explanation:

-6x+3(2x)=16

this equation equals to zero

therefore there are no solutions

A taxi driver records the time required to complete various and the distance for each trip. The best-given fit line by the equation y=0.467x + 0.417, where y represents the distance miles, and x represents the time for the trip in minutes. Estimate the distance for a trip that takes 20 minutes, show your reasoning

Answers

Using the line of best fit, it is found that the estimated distance for a trip that takes 20 minutes is of 9.757 miles.

What does the line of best fit gives?

It gives the estimated distance in miles of a trip that takes x minutes, according to the following function?

y = 0.467x + 0.417.

In this problem, the trip took x = 20 minutes, hence the distance is given by:

y = 0.467 x 20 + 0.417 = 9.757 miles.

More can be learned about a line of best fit at https://brainly.com/question/17261411

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Help as quick as possible plz :(

Answers

Answer: w=0.65n+6
Explanation: well at 0 weeks it’s 6 pounds so that explains the “+6” and I don’t exactly know hot to explain the first part

Can someone please help me on these?

Answers

The answer is C 7v-1
The answer is C -7v-1

Use a single digit times a power of 10 to estimate the number 0.00002438 .
Rounded to the nearest ​, the number 0.00002438 is wut i will give you brainliest

Answers

Answer:

2x10^-6

Step-by-step explanation:

Use a single digit times a power of 10 to estimate the number 0.00002438 .

Rounded to the nearest ​, the number 0.00002438

0.00002438

2x10^-6

When x=0 then

2x10^{-6}=0.000024

The perimeter of a rectangle is 42 inches. If the width of the rectangle is 6 inches, what is the length?
reminder: perimeter is distance around an object- length + width + length + width

12 inches

15 inches

21 inches

40 inches

Answers

Answer:

15 inches

Step-by-step explanation:

42 = 2L + 2(6)

first, we need to isolate L.

solve 2(6) to make this easier

42 = 2L + 12

42 - 12 = 2L + 12 - 12 ( this cancels out 12. )

30 = 2L

30 ÷ 2 = 2L ÷ 2 ( this cancels out 2. )

15 = L

ekusysnyeyuejteyjdjgdyjd​

Answers

Answer:

a. < less than

b. > greater than

c. > greater than

d. > greater than

e. < less than

Plzzzzz give me Brainliest!  

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