1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
just olya [345]
3 years ago
9

The diagonal of a cube is 28 cm. Identify the length of an edge.

Mathematics
1 answer:
asambeis [7]3 years ago
4 0
So the diagonal of cube
this was a practice act question so her's the answer

look at the cube through one of the faces
you will see the diagonal as the hypotonuse of  a triangle
and also a triangle on the floor (look at attachment)
the ,diagonal is 28
a^2+b^2=28^2
a=b since it is a cube
remember that this is a 45,45 triangle so therefor
a=b=x
c=x√2 so
28=x√2
divide both sides by √2
28/(√2)=x
the diagonal on the floor is 28/(√2)
the sides of the triangle form another 45 45 90 triangle with 28/(√2) as hyponuse so
a=b=x
c=x√2=28/(√2)
solve for x
x√2=28/(√2)
divide both sides by √2
same as mujlitply both sides by 1/(√2) so
28/(√2) times 1/(√2)=28/(2)=14
the answer of 1 diagonal is 14 cm
the answer is 14cm

You might be interested in
I<br> 1<br> 8 in<br> Find h.<br> 13 in<br> = √[?] in.
Archy [21]

as the following pic you can see the answer.

#diameter is 8 so radius is 4

8 0
2 years ago
Amia has $300 to plan a trip with her cousins. She wants to go to Orlando, Florida and it costs $127 for a room, $75 for gas rou
zhuklara [117]
First let's add the room cost and the gas.

127+75= 202

Let's subtract that from 300.

300-202= 98

Divide 98 by 20.

20 can only go into 98 4 times. 

Amia can only bring 3 cousins, since one of those 4 tickets are for her. 

I hope this helped you.

Brainliest answer is always appreciated. 
4 0
3 years ago
Consider a tree T storing 100,000 entries. What is the worst-case height of T in the following cases?
Darina [25.2K]

Answer:

Step-by-step explanation:

a.) The worst-case height of an AVL tree or red-black tree with 100,000 entries is 2 log 100, 000.

b.) A (2, 4) tree storing these same number of entries would have a worst-case height of log 100, 000.

c.) A red-black tree with 100,000 entries is 2 log 100, 000

d.) The worst-case height of T is 100,000.

e.)  A binary search tree storing such a set would have a worst-case height of 100,000.

6 0
3 years ago
for some reason brainly deleted this for not being "school related" even though it is so here's a repost, can anyone help me wit
tangare [24]

Answer:

1 tenth and 9 hundreds

Step-by-step explanation:

Ok so this is not a gud explanation but believe me that answer is correct

a tenth is 10% out of a hundred so thats 10/100 and since the 9 hundreds is already there 10/100+ 9/100= 19/100

Hope you have a gud day :)

6 0
2 years ago
The whole number 140 is divisible by 2, 3, 4, 5, 7, and 10.<br><br><br> True or False
Mariulka [41]
False. It is not divisible by 3.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Miguel wants to wallpaper the back wall of his bedroom. the wall is in the shape of a rectangle. its length is 13 feet and its w
    7·1 answer
  • As the radius of the wheel increases what happens to its circumference
    9·1 answer
  • BRAINLIEST! j+15 is an ____ expression, because____
    11·1 answer
  • 2.5 gallons of water are poured into 5 equally sized bottles . How much water is in each bottle
    11·2 answers
  • Can you please help me​
    6·1 answer
  • Choose the correct answer to classify each equation or situation below as exponential growth or decay.
    10·1 answer
  • Help please ASAP
    13·1 answer
  • Express as a trinomial ??<br><br> (2x-5)(2x-1)
    11·2 answers
  • Which table shows a function that is decreasing over the interval (-2, 0)?
    14·1 answer
  • R45 is increase by 10%​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!