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3 years ago

Someone help me with this pleaseeee!!!! I need help ASAP pleasee!!!

Mathematics

1 answer:

Katen [24]3 years ago

7 0

Answer:

192 cm^3

Step-by-step explanation:

base area = side^2 = 8^2 = 64 cm^2

V = (base area x height)/3 = (64 x 9)/3 = 192 cm^3

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A 8 year old boy has 6 different toys and wants to put them all in a straight line.

andreyandreev [35.5K]

<h3>Answer: 720</h3>

============================================================

Explanation:

The number 8 from "8 year old boy" can be completely ignored. In my opinion, this is an (un)intentional distraction on your teacher's part.

There are 6 toys to arrange. The order is important.

For the first slot, there are 6 choices.
Then the second slot has 5 choices (we cannot have a toy occupy more than one slot at a time).
The third slot has 4 choices, and so on.

We have this countdown: 6,5,4,3,2,1

Those values multiply out to 6*5*4*3*2*1 = 720

There are 720 ways to arrange the 6 different toys. Order matters.

---------------------

An alternative approach is to use the nPr permutation formula with n = 6 and r = 6. We use a permutation because order matters.

The nPr formula is

$_{n} P _{r} = \frac{n!}{(n-r)!}\\\\$

where the exclamation marks indicate factorial. For example, 6! = 6*5*4*3*2*1 = 720.

4 0

3 years ago

at a track meet, jacob and daniel compete in the 220 m hurdles. daniel finishes in 3/4 of a minute. jacob finishes with 5/12 of

Scrat [10]

I hope this help

Jacob is the faster time

6 0

3 years ago

Read 2 more answers

How do I figure out what 1/10 of 6000 is?

alisha [4.7K]

The way I like to figure out problems like this is to write it out like,

1/10 = x/6000
(One over ten equals x over 6000)

Then you find out how much you multiplied 10 by to get 6000. To do this you can divide 6000 by 10 getting 600. The rule "what you do to the bottom you have to do to top" in this equation. So since you multiplied the bottom by 600 you have to multiply the top by 600 as well. 600 times 1 is just 600.

So your answer is, 600 is 1/10 of 6000.

Hope this helps and isn't too confusing.

5 0

3 years ago

Anyone ...Pls solve

expeople1 [14]

Given:
- Bought n items of product A at 1/5 rs each
- bought n items of product B at 1/4 rs each
He mixed the two items and sold each at 2/9 rs each.
He lost 3 rs in the above batch of articles.

Solution:
revenue = 2n* (2/9) rs = 4n/9 rs
cost = n/5+n/4 rs = n(1/5+1/4)
Profit = revenue-cost = 4n/9-n(1/5+1/4) = -3 rs

Solve for n
4n/9-n(1/5+1/4) = -3
factor out n
n(4/9-1/5-1/4)=-3
n(80-36-45)/180=-3
-n/180=-3
n=3*180=540

Total number of products bought
= n+n = 540+540 = 1080

6 0

4 years ago

I need help figuring out the coordinate planes of these points ASAP.

d1i1m1o1n [39]

<u>Given</u>:

The vertices of the quadrilateral WXYZ are W(2,4), X(4,2), Y(2,1) and Z(0,2)

The graph is rotated 90° about the origin.

We need to determine the coordinates of the quadrilateral W'X'Y'Z'

<u>Coordinates of the quadrilateral W'X'Y'Z':</u>

The rule to transform the coordinates 90° counter clockwise about the origin is given by

$(x, y) \implies(-y, x)$