hitunglah luas permukaan balok dengan ukuran sebagai berikut
a. 8 cm × 4 cm × 2cm
B. 8 cm × 3 cm × 4 cm ​

Answers

Answer 1

jawaban

a. = 112 cm²b. = 136 cm²

penjelasan langkah demi langkah( step by step explanation )

Total Luas Permukaan = 2 (Panjang x Lebar + Lebar x Tinggi + Panjang x Tinggi)

a.Luas Permukaan = 2( 8×4 + 4×2 + 2×8 )

= 2 ( 32 + 8 + 16 )

= 2 × 56

= 112 cm²

b.Luas Permukaan = 2( 8×3 + 3×4 + 4×8 )

= 2 ( 24 + 12 + 32 )

= 2 × 68

= 136 cm²


Related Questions

What is the equation for the line of reflection? ​

Answers

x=6

hopefully im not wrong^^

HELPPP WILL MARK BRAINLIEST!!!!!!!!!!!!


what is the miniumum value of y=x^2-4x+8

Answers

Answer:

2 is your answer lemme know if I'm right

Answer:

2

Step-by-step explanation:

The smallest value within that equation would be 2 since all of the other numbers are have more value than 2 does.

What is 2/7+7/8
Help

Answers

Answer:

65/56 = 1  9/56

Step-by-step explanation:

Answer:

Step-by-step explanation:

16/56 + 49/56 = 65/56= 1 9/56

Darby bought a rare baseball card for $2,000. Three years later, the value of the card had increased 35% of its original value. By how much did the value of Darby’s baseball card increase?

$___

Answers

The card value after its increase of 35% would be $2,700.

Find the length of AB when A(-4,1) and B(3,-1). Round to the nearest tenth (one decimal place) if necessary.

Answers

Answer:

7.3 units is the answer rounded

When A(-4,1) and B(3,-1), the length of AB is approximately 7.3 units.

What is distance formula?

The distance formula is a mathematical formula that is used to compute the distance between two points in a coordinate plane.

This formula is derived from the Pythagorean theorem, which states that the square of the length of the hypotenuse in a right triangle equals the sum of the squares of the lengths of the other two sides.

We can use the distance formula to find the length of AB:

[tex]d = \sqrt{ ((x2 - x1)^2 + (y2 - y1)^2)}[/tex]

Where (x1, y1) = (-4, 1) and (x2, y2) = (3, -1)

d = sqrt([tex](3 - (-4))^2 + (-1 - 1)^2[/tex])

= sqrt([tex]7^2 + (-2)^2[/tex])

= sqrt(49 + 4)

= sqrt(53)

≈ 7.3 (rounded to one decimal place)

Therefore, the length of AB is approximately 7.3 units.

For more details regarding distance formula, visit:

https://brainly.com/question/25841655

#SPJ2

14) x - 27 0
3
X^3-27=0
X^3-27=0

Answers

Answer:

For the top equation, x = 27 (I think you meant to put x - 27 = 0. If not, I can always edit my answer for you)

For the bottom, x = 3

Hope this helps! Have a grrrreat day lol

4.) A customer at a concession stand bought 2 boxes of popcorn & 3
drinks for $12. Another customer bought 3 boxes of popcorn & 5
drinks for $19. How much does a box of popcorn cost? How much does
a drink cost? Write and solve a system of equations
Equation 1 :
Equation 2:
Popcorn
Drink:

Answers

Answer:

10$ each

Step-by-step explanation:

Find the value of z in parallelogram CDEF

Answers

Answer:

z = 13

Step-by-step explanation:

Opposite sides of a parallelogram are equal. Therefore:

3z = z + 26

Subtracf z from each side

3z - z = 26

2z = 26

z = 26/2

z = 13

At a football stadium, 4% of the fans in attendance were teenagers. If there were 260 teenagers at the football stadium, what was the total number of people at the stadium?

Answers

Answer:

solution

4%=260

100%=?

=(100x260)/4

=6500

Percentage of fans in the stadium who were teenagers = 4%

Number of teenagers in the match = 260

Let the total number of people at the stadium be x.

Which means :

[tex] =\tt 4\% \: \: of \: \: x = 260[/tex]

[tex] =\tt \frac{4}{100} \times x = 260[/tex]

[tex] =\tt \frac{4 \times x}{100} = 260 [/tex]

[tex] = \tt \frac{4x}{100} = 260[/tex]

[tex] = \tt4x = 260 \times 100 \\ \tt \: \: \: = 26000[/tex]

[tex] =\tt x = \frac{26000}{4} [/tex]

[tex]\color{plum} =\tt x = 6500[/tex]

▪︎Therefore, number of people at the stadium = 6500

solve all 5 questions for 62 points if they are correct you will be marked brainiest

Answers

Answer:

1.0.003

2.40 minutes

3.a,e

4.a,c,d

5.1/24

Step-by-step explanation:

1.0.003 that’s the answer for this problem

pls help 100 points helphelp

Answers

Answer:

Some kind of evadence

Step-by-step explanation:

Answer:

Im pretty sure it would be C.

Step-by-step explanation:

Sine a signature, photograph and quotes are all pieces of evidence, you can rule them out and infer that c would be the most reliable answer.

If Jimmy boy here has 35 ropes and he washes 56 paper, how much wetlands will Johnny Boy own left.

Answers

Answer:

All of what he had

Step-by-step explanation:

Answer: jimmy will have it all

Step-by-step explanation:

A cliff Diver jumps from 50 feet into a lake. After hitting the water he travelled 22 feet below the surface. How far did he travel?

Answers

Add both distances together:

50 + 22 = 72 feet total distance.

At 1:00 a.m., the temperature is 58º. At 9:00 a.m., the temperature is 76º. Find the rate of change in degrees per hour during this time.​

Answers

Answer:

1 AM = 58 Degrees

9 AM = 76 Degrees

Difference of temperate between the times:

18 Degrees

Divide every hour that passes by the total difference of temperate, which the hours are: 2, 3, 4, 5, 6, 7, 8, 9

18 / 8 = 2.25

Which means, the rate of change in degrees per hour is 2.25 degrees.

Step-by-step explanation:

The area of a circle is 641 ft2. What is the circumference, in feet? Express your
answer in terms of

Answers

Step-by-step explanation:

Given

Area of a circle (A) = 641 ft²

Circumference (C) = ?

We know

πr² = 641

r² = 641 / 3.142

r² = 204

r = 14.28 ft

Now

Circumference

= 2πr

= 2 * 3.14 * 14.28

= 89.68 ft

Hope it will help :)

Answer:

The circumference is 89.68 ft.

Someone plz help been stuck on this question for the last 2 hours



Paul has $30,000 to invest. His intent is to earn 11% interest on his investment. He can invest part of his money at 7% interest and part at 13% interest. How much does Paul need to invest in each option to make a total 11% return on his $30,000?
7% interest =$?

13% interest =$?

Answers

Answer:

7% interest = $10000

13% interest = $20000

Step-by-step explanation:

Let the amount invested at 7% interest be x.

Let the amount invested at 13% interest be y.

Thus;

x + y = 30000 - - - (eq 1)

We want to find out how much Paul needs to invest in each option to make a total 11% return on his $30,000.

Thus;

0.07x + 0.13y = 0.11(30000)

Multiply through by 100 to get rid of the decimal;

7x + 13y = 0.11(30000 × 100).

7x + 13y = 330000 - - - (eq 2)

From eq 1, x = 30000 - y

Put this for x in eq 2 to get;

7(30000 - y) + 13y = 330000

210000 - 7y + 13y = 330000

6y = 330000 - 210000

6y = 120000

y = 120000/6

y = $20000

x = 30000 - 20000

x = $10000

Thus;

Amount invested at;

7% interest = $10000

13% interest = $20000

solve 3e = -27 show work
this one i dont understand how to do​

Answers

Answer:

-9

Step-by-step explanation:

This would be -27/3 = -9

Please help me with this question what’s 84 + 6 1/3

Answers

Answer:

90 1/3

Step-by-step explanation:

Answer: Mixed number form = 90 1/3

Decimal form = 90.3 with a repation bar

Actual Form = 271 / 3

Step-by-step explanation:

2(-4y-7)+3=11 solve for y

Answers

Answer:

y = -11/4

Step-by-step explanation:

2 ( -4y - 7) + 3 = 11

-8y - 14 + 3 = 11

-8y - 11 = 11

-8y = 22

y = -11/4

Answer:

12

Step-by-step explanation:

-4 + 12 =7

6p² equals to..................​

Answers

Answer:

36p is the correct answer

While rolling, a wheel with a diameter of 13/2m makes 196 revolutions. Find the distance that is traveled by the wheel. Use for 22/7 for pi​

Answers

Answer:

9.6 m

Step-by-step explanation:

let 'x' be distance traveled

196 = 3.14(6.5)x

196 = 20.41x

x = 196/20.41

x = 9.6

Can someone please help me with my homework

Answers

Answer:

Do not use, there's still one more piece of the puzzle missing.

X =

Step-by-step explanation:

Lets look everything over and compare the corresponding parts of the 2 triangles.

One side of each is shared between the two triangles.

Another side of each triangle is 13 on each triangle.

The included angle of one triangle is 80 degrees and the other is 110 degrees.

What is 730 divided by 30

Answers

Answer:

24 1/3

Step-by-step explanation:

long division

Which of the following is the expansion of
(2x + 3)^3?

Answers

I think the answer is 8×^3+36×^3+54×+27. If the answer is wrong then I'm sorry

Answer:

8x^3 + 36x^3 + 54x + 27

Step-by-step explanation:

If you're asking to expand the equation the answer is 8x^3 + 36x^3 + 54x + 27

1.45 to 4.35 as a simplified fraction

Answers

Answer:

1/45 = 0.02

4/35 =0.1  142857

Step-by-step explanation:

The expression of 1.45 to 4.35 as a fraction in its simplified form is 1/3.

What is a simplified fraction?

A simplified fraction is an improper fraction that can no longer be further divided by a divisor. An improper fraction is a fraction with both the numerator and the denominator.

From the information given, we are to express 1.45 to 4.35 as a simplified fraction.

i.e.

= 1.45 as a ratio of 4.35

= 1.45/ 4.35

= 1/3

Learn more about fractions here:

https://brainly.com/question/78672

#SPJ6

The graphs below have the same shape. What is the equation of the blue graph? 

Answers

Answer:

c

Step-by-step explanation:

Other Questions
Who is the current prime minister of India Which of the following answers would haveno solution?X=35=32=2 solve 3e = -27 show workthis one i dont understand how to do Brainliest need help plzA horizontal line has points A , E, D. A line extends vertically from point E to point C and forms a right angle at C E D. A line extends up and to the left from point E to point B. Which statement is true about the given information? CED measures 45. CED measures 180. AEC measures 90. AEC measures 45. What is a curved line in velocity time graph represent? Max ran 3 1/3 mile yesterday and 2 1/3 miles today. How far did max run in all? (b) in what way are carbon dioxide and orange juice similar? At a football stadium, 4% of the fans in attendance were teenagers. If there were 260 teenagers at the football stadium, what was the total number of people at the stadium? Project: Earths layers At 1:00 a.m., the temperature is 58. At 9:00 a.m., the temperature is 76. Find the rate of change in degrees per hour during this time. what is the sum of 8bb-4bb cules seran algunos de los complementos y aparatos ms utilizados en la clase de educacin fsica para la prctica de la gimnasia???????? Ayuda!!!!!!; Rhian sat a maths test and an English test. in the maths test, she scored 14/17. in the English test, she scored 31/39. in which test did she do better Someone plz help been stuck on this question for the last 2 hoursPaul has $30,000 to invest. His intent is to earn 11% interest on his investment. He can invest part of his money at 7% interest and part at 13% interest. How much does Paul need to invest in each option to make a total 11% return on his $30,000?7% interest =$?13% interest =$? poesia y poemas sen que evoca dos milagros,Leccion de estilo, la higuera,canto ala bandera What is 730 divided by 30 Al reaccionar el hidrgeno con: fsforo, arsnico antimonio y boro con Valencia Iforman: Writing an Argument Letter: Answer the follow questions, as if you were preparing to write your own argument letter. What does the phrase arguing for a cause mean? What factors about your audience should you keep in mind when writing an argument for a cause? How do argument writers tailor their language to their audience when arguing for a cause? How do argument writers respond to counterclaims when arguing for a cause? A chemist analyzes two samples. One sample contains 14g of element x and 6.0 g of element y. The second sample contains 28 g of element x and samples are the same substance pls help 100 points helphelp