jumlah panjang rusuk sebuah kubus adalah 84cm. luas permukaannya adalah.....

Answers

Answer 1

Answer:

Total surface area of cube = 294 cm²

Step-by-step explanation:

Given:

Perimeter of cube = 84 cm

Find:

Total surface area of cube

Computation:

Perimeter of cube = 12 x side

84 = 12 x side

Side = 7 cm

Total surface area of cube = 6(a)²

Total surface area of cube = 6(7)²

Total surface area of cube = 294 cm²


Related Questions

Evaluate the expression when a – 3 and c = 12
[tex] \frac{ c}{a} \: = [/tex]

Answers

Answer:

4

Step-by-step explanation:

First, let's replace the c with 12, and the a with 3, since those are the values given.

Now we have 12/3.

12 ÷ 3 = 4

So, c/a = 4.

Reagan has a rectangular bedspread that measures 238 centimeters by 435 centimeters. She wants to sew a fringe around the edge of the bedspread. WHAT LENGTH OF FRINGE DOES REAGAN NEED TO USE?

Answers

Answer: 1346cm

Step-by-step explanation:

From the question, we are informed that Reagan has a rectangular bedspread that measures 238 centimeters by 435 centimeters and that he wants to sew a fringe around the edge of the bedspread.

This simply means that we have to find the perimeter of the rectangular bedspread and this will be:

= 2(length + width)

= 2(435 + 238

= 2(673)

= 1346cm

The length of fridge needed by Reegan is 1346cm.

Answer:

1346

Step-by-step explanation:

Find out the reason why

Answers

Oh okay so it’s a math problem

Express 620 ft in yards and feet

Thanks

Answers

Answer:

around 206 yards and 2 feet

Given 6, 8, and 11 as the three sides of a triangle, classify it as one of the following:

A. Acute
B. Right
C. Obtuse

Answers

9514 1404 393

Answer:

  C. Obtuse

Step-by-step explanation:

The "form factor" I use for this is ...

  a^2 + b^2 - c^2 = 6^2 + 8^2 - 11^2 = 36 +64 -121 = -21

The value is negative, indicating an OBTUSE triangle.

__

Additional comment

In this expression, 'a' and 'b' are the two shortest sides (in no particular order) and 'c' is the longest side. The interpretation is ...

  negative — obtuse

  zero — right

  positive — acute

__

If you're familiar with Pythagorean triples, you know that the 3-4-5 right triangle triple can be doubled to give 6-8-10. The long side of 11 is longer than the hypotenuse for the right triangle, so would correspond to a largest angle greater than 90°. The 6-8-11 triangle would be OBTUSE.

The coordinates for the vertices of Quadrilateral MNPQ are M (3,0), N (1,3), P (-2,1) and Q (0,-2) Classify quadrilateral MNPQ show your work!

Answers

Hope that helped

I'm not sure if that's right

HELP PLS ITS URGENT! will give brainliest if answers these 2 questions correctly

Answers

Answer:

Domain = -6 ≤ x ≤ 6   Range = -1 ≤ y ≤ 3

Step-by-step explanation:

The domain is the interval on the x-axis and the range is the interval on the y-axis.

The Earth's crust is ___
thin
fragile
the outermost layer
all of the above

Answers

Answer:

all of the above po

Step-by-step explanation:

sana makatulong

Answer:

Extremely

Step-by-step explanation:

2. Find each difference. If you get stuck, consider drawing a nu
a. 9-4
b. 4-9
c. 9-(-4)
d. -9 - (-4)
e.-9-4
f.4 - (-9)
g. -4-(-9)
h. -4 -9
I need help

Answers

Answer:

a. 5

b. -5

c. 13

d. -5

e. -13

f. 13

g. 5

h. -13

A.5
B.-5
C.13
D.-5
E.-13
F.13
G.5
H.-13

3|4x-9=27
how to solve this​

Answers

Answer: x=48

Step-by-step explanation:

first add 9 to both sides

then add 27 to 9 to get 36

multiply both sides by 3/4 the reciprocol of 4/3

and youll get x=36 x (4/3)

simply to a single fraction then

then divide 144 by 3  to get 48

How many different ways can the letters of "Mississippi" be arranged.

Answers

Answer: .........34,650

Step-by-step explanation:

Answer:

Mississippi has 11 letters in it so

11 · 10 · 9 · 8 · 7 · 6 · 5 · 4 · 3 · 2 · 1 = 11! or 39,916,800

Step-by-step explanation:

What is the equation of the line that passes through the point (-4, 2) and has a
slope of ?

Answers

in between -4 and 2 so maybe -2 because it’s not2

Graph 0.65 on the number line. PLEASE HURRY

Answers

Answer:

The answer is 3rd line infront of 0.5 2nd line behind 0.75

Step-by-step explanation:

It goes 0.5, 0.55, 0.60, 0.65, 0.70,0.75

think of .5 as 50 and skip count by 5s up to .75 where i marked the red line is .65 tho

An author uses connotative meanings to ______________.(1 point) give readers definitions of unknown words. provide readers with a feeling. allow readers to compare characters. teach readers about a different language.

ANSWER ASAPPPPP PLZZZ I WILL MARK BRAINLEST

Answers

Answer:

Provide readers with a feeling

Step-by-step explanation:

Sorry if i'm late.

If you spin the spinner 11 times, what is the best prediction possible for the number of times it will land on yellow?
yellow:4
green:3
pink: 4​

Answers

Where's the spinner ? Like the picture .

During a walk-a-thon, Noah's time in hours, t, and distance in miles, d, are related by the equation 13t=d. A graph of the equation includes the point (12 , 4).

Answers

Step-by-step explanation:

the answer is 152 thats what i got

SOMEONE HELP ME WITH THIS. IF THE ANSWER IS CORRECT I'LL GIVE YOU BRAINLIEST.

Answers

Answer:

1: 20 ounce carton is a better buy, its 6 cents per ounce, while the 12 ounce is 8 cents per ounce.

2: The ant walked for 405 hours (i think)

Step-by-step explanation:

:l boredom

Solve for x - (4x-5y) = (-5y+4)

Answers

Answer:

X= 10/3y + -4/3                

Step-by-step explanation:

Step One: add -5y to both sides

Step two: divide both sides by -3

Answer:

-x=1 1/3

Step-by-step explanation:

x-(4x-5y)=(5y+4)

x-4x+5y=5y+4

-3x+5y=5y+4

5y-5y=0

-3x=4

x=4÷3

4÷3=1 1/3

We will give brain list please help PS ignore the black stuff it’s private information

Answers

Answer:

the last one? i think.

Step-by-step explanation:

Answer:

It's 6^{2}b^{15}

Step-by-step explanation:

:) Hope that helped

Evaluate the expression for n=-3

Answers

Answer:

5n is your answer hope this help

Enter a number in each box so that the expressions are equivalent. (A) 0.8 (2x + x) + 3(7 - 4.1x) = x + 21 (B) 12 1 2 (6x + 22y) = x + y (C) (3x - ) - (6x + 1) = -3x - 2 (D) 112 1 2 x + 27y = (12 1 2 x + 9y)

Answers

The questions aren't well formatted ; from the values that are observable,

Answer:

Coefficient of x = -9.9 ;

Coefficient of x = 75

Coefficient of y = 275

Step-by-step explanation:

Given :

0.8 (2x + x) + 3(7 - 4.1x) = __x + 21

0.8(3x) + 21 - 12.3x = __x + 21

2.4x + 21 - 12.3x = __x + 21

-9.9x + 21 = __x + 21

-9.9

12 1/2 (6x + 22y) = x + y

75x + 275y = x + y

Answer:

The answers are:

1.  -9.9x

2.  3x + 11y

3.  1

4.  3

PLS HELP WILL GIVE BRAINLEST
Which figure can be formed from the net?

An unfolded square base pyramid with the sides of the base being eight millimeters and the length from the base to the tip is ten millimeters.

A) A pyramid with a triangle base has two sides measurements of ten millimeters. The length from the base to the tip of a triangle is eight millimeters.

B)A pyramid with a triangle base has two sides measurements of eight millimeters. The length from the base to the tip of a triangle is ten millimeters.

C)A pyramid with a square base has two sides measurements of ten millimeters. The length from the base to the tip of a triangle is eight millimeters.

D)A pyramid with a square base has two sides measurements of eight millimeters. The length from the base to the tip of a triangle is ten millimeters.

Answers

Answer:

D

Step-by-step explanation:

7/10 is what percent of 7/8

Answers

Answer:

0.6125 (or 6,125/1,000)

If you need more help, don't hesitate to ask!

I'm here until 2:30!

May I please have brainliest?

Answer:

80%

Step-by-step explanation:

7/8 = 87.5/100

7/10 = 70/100

new equation: 70 is what percent of 87.5

87.5/100=0.875 so 0.875=1% so now we divide 70 by 0.875

70/0.875=80 so 7/10 is 80% of 7/8

hope this helps have a blessed day :^)

A geometric sequence has an initial value of 2 and a common ratio of 3. Which formula would be more practical to use if you were looking find the value of the 19th number in the sequence?

Answers

Answer:

19th term = ar^18

19th term = 774,840,978

Step-by-step explanation:

First term, a = 2

Common ratio, r = 3

nth term of a geometric sequence = ar^(n-1)

19th term = ar^(19-1)

19th term = ar^18

= 2 × 3^18

= 2 × 387,420,489

= 774,840,978

19th term = 774,840,978

8. Find the length of the missing side of the right triangle. If necessary, round your answer to the
nearest tenth.
10 in
8 in.
?

Answers

Answer:

If these two are leg lengths, the hypotenuse will be 2√41.

If 8 is a leg and 10 is a hypotenuse, the other leg will be 6.

How to get the answer:

Use the pythagorean theorem.

A sign next to a roller coaster at an amusement park says, “You must be at least 60 inches tall to ride.” Noah is happy to know that he is tall enough to ride.

Noah is x inches tall. Which of the following can be true: x>60, x<60, or x=60?
Explain how you know.

Answers

Answer:

x>60 or x=60

Step-by-step explanation:

The must be 60 or more inches.

Answer:

x=60 and x>60

Step-by-step explanation:

if he is taller > or equal = to 60 than he can ride

PLEASE HELP! 20 POINTS + BRAINLIEST WILL BE GIVEN
Jim is hoping that a park will be built within 5 miles of his house. If a park is built at the coordinates (12, 10), does that meet Jim’s criteria? Explain.

Answers

Answer:

yes 4.4 miles away

Step-by-step explanation:

The park at the coordinates (12, 10) does not meet Jim's criteria of being within 5 miles of his house.

What are coordinates in a graph?

The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.

The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.

We have,

To determine if the park at coordinates (12, 10) meets Jim's criteria of being within 5 miles of his house,

We need to calculate the distance between Jim's house at the coordinates

(17, 13) and the park at coordinates (12, 10).

We can use the distance formula to calculate the distance between two points in a coordinate plane:

[tex]d = \sqrt{((x_2 - x_1)^2 + (y_2 - y_1)^2)}[/tex]

where d is the distance between the two points:

[tex](x_1, y_1) and (x_2, y_2).[/tex]

Using the coordinates of Jim's house and the park,

We can calculate the distance between them:

d = √((12 - 17)² + (10 - 13)²)

d = √((-5)² + (-3)²)

d = √(25 + 9)

d = √(34)

The distance between Jim's house and the park is √(34), which is approximately 5.83 miles.

This is greater than Jim's criteria of 5 miles, so the park at the coordinates

(12, 10) does not meet Jim's criteria of being within 5 miles of his house.

Thus,

The park at the coordinates (12, 10) does not meet Jim's criteria of being within 5 miles of his house.

Learn more about coordinates here:

https://brainly.com/question/13118993

#SPJ3

NEED ANSWERS FAST PLEASE HELP ​

Answers

Answer:

left side

Shiny luster, malleable, good conductors,poor insulators and ductile

I need help with these questions can someone help me please?

Answers

Answer:

angle m 1 = 155°

angle m 2 = 25°

angle m 3 = 155°

angle m 4 = 25°

angle m 5 = 25°

angle m 6 = 155°

angle m 7 = 25°

angle m 8 =155°

1st Vertically opposite angle

2nd Linear pair

3rd Corresponding angle

4th Angle Alternative

5th Angle Alternative

Plzzz mark me as brainliest :)

Explaination:

angle m 2 = angle m 7 = angle m 4 is 25°

angle m 1 = angle m 3 = angle m 6 = angle m 8 is 155°

I NEED HELP WILL MARK BRAINLIEST

Answers

Answer:

4.5 units

Step-by-step explanation:

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