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
Vika [28.1K]
3 years ago
6

What is this please answer within 15 min thanks

Mathematics
2 answers:
Phantasy [73]3 years ago
8 0
3/12 which is 25% and is 0.25
marysya [2.9K]3 years ago
3 0
3 out of 12 areas are filled. so that is 25% and 0.25 in decimal form. <span />
You might be interested in
An angle 119 degree is bisected.What is the measure of each resulting angle?
KatRina [158]
When an angle is bisected, it is split into two halves. If the original angle of 119 degrees is bisected, each new angle will equal half of 119, which equals 59.5 degrees.
7 0
3 years ago
PLEASE HELP ASAP <br><br> you dont have to do all
Usimov [2.4K]

Answer:2

Step-by-step explanation:Percentage Calculator: 12 is what percent of 600? = 2.

3 0
3 years ago
Read 2 more answers
7) PG &amp; E have 12 linemen working Tuesdays in Placer County. They work in groups of 8. How many
BabaBlast [244]

Part A

Since order matters, we use the nPr permutation formula

We use n = 12 and r = 8

_{n}P_{r} = \frac{n!}{(n-r)!}\\\\_{12}P_{8} = \frac{12!}{(12-8)!}\\\\_{12}P_{8} = \frac{12!}{4!}\\\\_{12}P_{8} = \frac{12*11*10*9*8*7*6*5*4*3*2*1}{4*3*2*1}\\\\_{12}P_{8} = \frac{479,001,600}{24}\\\\_{12}P_{8} = 19,958,400\\\\

There are a little under 20 million different permutations.

<h3>Answer: 19,958,400</h3>

Side note: your teacher may not want you to type in the commas

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

Part B

In this case, order doesn't matter. We could use the nCr combination formula like so.

_{n}C_{r} = \frac{n!}{r!(n-r)!}\\\\_{12}C_{8} = \frac{12!}{8!(12-8)!}\\\\_{12}C_{8} = \frac{12!}{4!}\\\\_{12}C_{8} = \frac{12*11*10*9*8!}{8!*4!}\\\\_{12}C_{8} = \frac{12*11*10*9}{4!} \ \text{ ... pair of 8! terms cancel}\\\\_{12}C_{8} = \frac{12*11*10*9}{4*3*2*1}\\\\_{12}C_{8} = \frac{11880}{24}\\\\_{12}C_{8} = 495\\\\

We have a much smaller number compared to last time because order isn't important. Consider a group of 3 people {A,B,C} and this group is identical to {C,B,A}. This idea applies to groups of any number.

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

Another way we can compute the answer is to use the result from part A.

Recall that:

nCr = (nPr)/(r!)

If we know the permutation value, we simply divide by r! to get the combination value. In this case, we divide by r! = 8! = 8*7*6*5*4*3*2*1 = 40,320

So,

_{n}C_{r} = \frac{_{n}P_{r}}{r!}\\\\_{12}C_{8} = \frac{_{12}P_{8}}{8!}\\\\_{12}C_{8} = \frac{19,958,400}{40,320}\\\\_{12}C_{8} = 495\\\\

Not only is this shortcut fairly handy, but it's also interesting to see how the concepts of combinations and permutations connect to one another.

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

<h3>Answer: 495</h3>
5 0
2 years ago
A square has a perimeter given by the expression 16x+32y. Write an expression for the length of one side of the square.
Lemur [1.5K]
A square has 4 equal sides which make up the perimeter.

Therefore the length of one side = (16x + 32y) / 4  = 4x + 8y Answer
8 0
3 years ago
Read 2 more answers
I need help with the last question
umka2103 [35]

Answer: well next time gahni better count right and potentially yes it could effect it

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Which of the following is an irrational number?
    7·1 answer
  • Please answer only if you know for sure :) Comes from pre-calc btw
    7·2 answers
  • The floor plan of a room has a scale of 2.5 in. : 35 ft. In the drawing, the length of the room is 8 in. and the width of the ro
    14·2 answers
  • 86,700,000-3.45•10^7
    8·1 answer
  • At the mall, buying a pair of shoes and buying a book are independent events.The probability that a shopper buys shoes is 0.15.
    6·2 answers
  • Please help me on this question
    6·2 answers
  • A circular hot spring has a diameter of 110 meters. Overtime the hot spring decreases by 3 meters. By how many square meters doe
    14·1 answer
  • PLease help me on this I have ten minutes left
    6·1 answer
  • The longer price of wood has dimensions of 2 inches by 2 inches by 8 inches the shorter piece of wood has dimensions of 4 inches
    12·1 answer
  • Can someone help me solve this logarithm function
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!