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
Gelneren [198K]
3 years ago
13

A rectangular prism and a triangular prism each have a volume of 210 cubic meters. find possible dimensions for each prism.

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
5 0
An interesting question! Let's take a look at the rectangular prism first.

[Rectangular Prism]
We know that the formula for the volume of a rectangular prism is:
volume = length * width * height

or more simply
V = L*W*H

All we know is that the volume is 210 cubic meters. We can choose whatever we want for the dimensions to force it to work! We're free to do what we want!
210 = L*W*H

I like 10, that's a nice number. Let's make L = 10.
210 = 10*W*H

Hmm... but now I need W*H to be 21 (think about it, make sure you get why I say that). Well, how about W = 7 and H = 3? That should work.
210 = 10*7*3

It checks! Possible dimensions for the rectangular prism are L = 10 meters, W = 7 meters, and H = 3 meters. There are many other choices of course, but this is a possible choice.

[Triangular Prism]
Same idea, different formula. For a triangular prism, the volume is
V = 1/2 * L*W*H

But the volume is still 210 cubic meters, so we just have
210 = 1/2 * L*W*H

So, one of our dimensions is going to be cut in half. Why don't we just double L to make up for it? 
210 = 1/2*(20)*W*H

And we can leave W and H the same
210 = 1/2*20*7*3

Check that it works! A possible choice is L = 20 meters, W = 7 meters and H = 3 meters.

We're done!

You might be interested in
Let A be a 3 by 6 , B be a 6 by 7 and C be a 7 by 3 matrix. Determine the size of the following matrices (if they do not exist,
kozerog [31]

Answer:

a. AB: 3 by 7

b. BA: N by N

c. A^TB: N by N

d. BC: 6 by 3

Step-by-step explanation:

Given

A =3\ by\ 6

B =6\ by\ 7

C =7\ by\ 3

Required

The dimension of the following matrices

As a general rule:

For A * B to be successful, the columns in a must equal the rows in B

Using this rule, we have:

A_{m*n} * B_{n * p} = AB_{m*p}

So:

(a)\ AB

A_{3*6} * B_{6*7} \to AB_{3 * 7}

(b)\ BA

B_{6*7} * A_{3*6} \to AB_{N * N}

The column numbers of B does not equal the row numbers of A.

Hence, BA does not exist

(c)\ A^TB

A^T implies that:

If A =3\ by\ 6, then

A^T = 6\ by\ 3

So:

A^T_{6*3} * B_{6,7} \to A^TB_{N*N}

The column numbers of A^T does not equal the row numbers of B.

Hence, A^TB does not exist

(d)\ BC

B_{6*7} * C_{7*3} \to BC_{6,3}

6 0
3 years ago
What does x = ? Please help meee
makkiz [27]

Answer:

x= 95 duhhhhhhh lol jk but its 95

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A family of 6 is going to the fair. They have a coupon for $1.50 off each ticket. If they pay $46.50 for all their tickets, how
madreJ [45]

Answer:

35.00

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Solve.<br> Subtract 6x2 – X – 7 from the product of x2 + x + 5 and x - 6.
tresset_1 [31]

Answer:

x ^ 3 − 11 x ^ 2 + X - x − 23

Step-by-step explanation:

you have to Simplify the expression. Hope that helped!! :)

PLEASE MARK BRAINLIEST!!

8 0
3 years ago
How many tens are in 805
sasho [114]
There are 80.5 tens in 805
5 0
3 years ago
Read 2 more answers
Other questions:
  • The answer please please
    7·1 answer
  • What is the value of​
    13·1 answer
  • I am a real number I am a rational number I am not a natural number I am less than -13 what number am I
    12·2 answers
  • The aquarium is 24 inches long and 10 inches wide.The volume of the aquarium is 2,880 cubic inches. How many inches tall is the
    14·2 answers
  • Does anyone know how to do this?
    14·1 answer
  • Which expression represents the area of this figure?
    6·2 answers
  • Carl collects coins compulsively, but he only likes quarters and dimes. Carl currently has 125 coins for a total of $26.00. How
    12·1 answer
  • An initial amount of $40,000 increases by 8% per year. In how many years will the amount reach $60,000?​
    8·2 answers
  • What is the value of pi based on the equation for the best-fit line?.
    12·1 answer
  • Nicole is building a walkway with a width of xx feet to go around a swimming pool that measures 11 feet by 7 feet. If the total
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!