All categories

3 years ago

Drag and drop the correct surface area to match the cube. cube with edge length = 3.2 m 12.8 m²19.2 m²51.2 m²61.44 m²

Mathematics

1 answer:

Ira Lisetskai [31]3 years ago

3 0

- Surface Area of a Cube = 6(L)²
- Surface Area of this cube = 6(3.2)²
= 61.44 m²

You might be interested in

Answer my question and i will mark you as brainliest its that easy, trust me i promise

Lesechka [4]

Answer:

Hope that help the answer is 300

Step-by-step explanation he drives for 3 hours at a rate of 80 km per hour, multiply:

Now we need to find how far he goes in 45 minutes. There are 60 minutes in an hour, so write and simplify:

45 is three quarters of an hour, so multiply that by 80 km per hour:

Add the distances together:

At a rate of 80 km per hours, in 3 hours and 45 minutes, Tim drives 300 km.

Finito.

7 0

3 years ago

Read 2 more answers

a class has ten girls and three boys. if the teacher randomly picks ten students,what is the probability that he will pick all g

grin007 [14]

Answer:

10/13

Step-by-step explanation:

You will first add all the students the mentioned which gives you 13 then since they ask what is the probability it the teacher would pick girls. You know there's 10 girls and 3 boys so it would be 10/13.

7 0

2 years ago

Solve for x: 5/x^2-4+2/x=2/x-2

IRINA_888 [86]

$\dfrac{5}{x^2 - 4} + \dfrac{2}{x} = \dfrac{2}{x - 2}$

$\dfrac{5}{(x + 2)(x - 2)} + \dfrac{2}{x} = \dfrac{2}{x - 2}$

$\dfrac{5}{(x + 2)(x - 2)} \times x(x + 2)(x - 2) + \dfrac{2}{x} \times x(x + 2)(x - 2) = \dfrac{2}{x - 2} \times x(x + 2)(x - 2)$

$5x + 2(x + 2)(x - 2) = 2x(x + 2)$

$5x + 2(x^2 - 4) = 2x^2 + 4x$

$5x + 2x^2 - 8 = 2x^2 + 4x$

$5x - 8 = 4x$

$x - 8 = 0$

$x = 8$

Now we look at the common denominator.

It is x(x + 2)(x - 2).

x cannot be zero, -2 or 2 because that would cause a zero in the denominator.

Since we get x = 8, and x = 8 does not have to be excluded from the domain, the answer is x = 8.

Answer: x = 8

6 0

3 years ago

The main hall of Grand Central Station in New York City is approximately 210,000 square feet.

jeka57 [31]

Answer:

52,500 persons

Assuming that a single person occupies 4 square feet of space.

Use the following formula to calculate the Numbers o person occupies the Grand Central Station in New York City

Numbers of person occupies the Grand Central Station in New York City = Total Space of Grand Central Station in New York City / Space occupied by each person

Where

Total Space of Grand Central Station in New York City = 210,000 square feet

Space occupied by each person = 4 squaure feet

Placing values in the formula

Numbers of person occupies the Grand Central Station in New York City = 210,000 square feet / 4 square feet per person

Numbers of person occupies the Grand Central Station in New York City = 52,500 persons

1.3125%

Use the following formula to calculate the percentage of people that could be sheltered in the station

Percentage of people shelter in the station = ( Numbers of person occupies the Grand Central Station in New York City / Total population in Manhattan ) x 100

Where

Numbers of person occupies the Grand Central Station in New York City = 52,500 persons

Total population in Manhattan = 4,000,000 persons

Placing values in the formula

Percentage of people shelter in the station = ( 52,500 / 4,000,000 ) x 100 = 0.013125 = 1.3125%

8 0

3 years ago

The answer to 8x+y more than equal to -12

Anarel [89]

For this case we must resolve the following inequality:

$8 + y \geq-12$

Subtracting 8 from both sides of the inequality:

$y\geq -12-8$

Equal signs are added and the same sign is placed.

$y\geq-20$

Thus, the solution is given by all values of "y" greater than or equal to -20.

Answer:

"y" belongs to the set [-20,∞)

4 0

3 years ago