A cube is a three dimensional solid with 6 square faces find the total surface area of a cube whose edges are each 5 feet in length

Answers

Answer 1

Answer: surface area of a cube = 6s^2
= 6(5)^2 = 6 x 25 = 150 square feet

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Brainliest if correct - What is the circumference of this circle? View image for full question.

Answers

Answer:

308 mm

Step-by-step explanation:

The formula for circumference of a circle is $C=2\pi r$

Where C is the circumference

$\pi$ is $(22)/(7)$ , and

r is the radius (given as 49)

Putting them into the formula, we get:

$C=2\pi r\nC=2((22)/(7))(49)\nC=308$

Thus, circumference = 308 mm

Answer:308

Step-by-step explanation:

C=2(22/7)(49)

C=308

a traveler has 7 pieces of luggage . how many ways can the traveler select 3 pieces of luggage for a trip

Answers

Answer:

Step-by-step explanation:

7-3= 4

7*6*5 = 210

3*2 = 6

210/6 = 35

Took the test this is the correct answer

Well, you could assign a letter to each piece of luggage like so...

A, B, C, D, E, F, G

What you could then do is set it against a table (a configuration table to be precise) with the same letters, and repeat the process again. If the order of these pieces of luggage also has to be taken into account, you'll end up with more configurations.

My answer and workings are below...

35 arrangements without order taken into consideration, because there are 35 ways in which to select 3 objects from the 7 objects.

210 arrangements (35 x 6) when order is taken into consideration.

*There are 6 ways to configure 3 letters.

Alternative way to solve the problem...

Produce Pascal's triangle. If you want to know how many ways in which you can choose 3 objects from 7, select (7 3) in Pascal's triangle which is equal to 35. Now, there are 6 ways in which to configure 3 objects if you are concerned about order.

For f(x)=3x+4, find f(2) and find x such that f(x)=17

Answers

$f(x)=3x+4 \n \n f(2) =3x+4 = 3\cdot 2+4 =6+4 =10 \n \n \n f(x)=17 \n \n17=3x+4 \ \ |-4 \n \n3x+4-4 = 17-4\n \n 3x = 13 \ \ /:3 \n \nx=(13)/(3)\n \nx=4(1)/(3)$

A plane is an undefined term because

Answers

A place is an undefined term because it is described generally, not using a formal definition.

Hope this helped :)

Answer:

is described generally, not using a formal definition

I TOOK THE TEST JUST NOW AND GOT IT RIGHT

Step-by-step explanation:

The radius of the Earth is approximately 3,960 miles. Find the approximate surface-area-to-volume ratio of the Earth.

Answers

The surface area of a sphere is A = 4π R²

The volume of a sphere is V = (4/3) ( π) (R³)

The ratio of (surface area) to (volume) is

      4 π R² / (4/3) (π) (R³)

Divide top and bottom by 4π :    R² / (1/3) (R³)

Multiply top and bottom by 3: 3 R² / R³

Divide top and bottom by R² :    3 / R .

For the Earth,

   A / V = (3) / (3,960 miles) = 0.00076 per mile (rounded)

Answer:

B. 0.00076

Step-by-step explanation:

Unit test on e2020

ΔBCD is rotated 80° clockwise about the origin to form ΔKLM. If m∠KLM=30° , what is m∠BCD?m∠BCD=30°

m∠BCD=50°

m∠BCD=80°

m∠BCD=110°

Answers

The triangle is merely rotated. No other changes have been done to it whatsoever. Therefore, the measure of the angle should still be the same. Since angle KLM is equal to 30 degrees, then the measure of angle BCD should also be equal to 30 degrees.

Answer: m∠BCD=30°

Answer:

Step-by-step explanation:

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