Penjabaran dari 3×+2(4×-6)
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Distriuthing 2 through parentheses
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PLEASE answer as soon as you can! First correct answer will get BRAINLIEST!!! :)
The function p(x) = –2(x – 9)2 + 100 is used to determine the profit on T-shirts sold for x dollars. What would the profit from sales be if the price of the T-shirts were $15 apiece?
I have spent quite long on this but not able to solve it. Pls help ! Thanks!
Tran is solving the quadratic equation 2x2 – 4x – 3 = 0 by completing the square. His first four steps are shown in the table.In which step did Tran first make an error? Step 1 Step 2 Step 3 Step 4
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The number of ways to schedule their appearances is 362880
How to determine the number of ways to schedule their appearances?
The number of performers is given as:
n= 9
Assume that the performers can only perform one after the other;
The number of ways their appearances can be scheduled is:
Ways = 9!
Expand
Ways = 9 * 8 * 7 * ... * 1
Evaluate
Ways = 362880
Hence, the number of ways to schedule their appearances is 362880
Read more about factorials at:
For the first act, there are 9 possible performers we can pick
For the second act, because we have already assigned a performer to the first act, there are only 8 possible performers
For the third act, because we have already assigned a performer to the first two acts, there are only 7 possible performers
This goes on and on until we reach the final act, where we have used all the performers except one.
Therefore we can say:
For the first act there are 9 possibilities
For the second act there are 8 possibilities
For the third act there are 7 possibilities
For the fourth act there are 6 possibilities and so on
If we want to write this mathematically we can just say that there are:
9 possibilities x 8 possibilites x 7 possibilities etc right down until we are at the final act where there is 1 possibility.
To write this out as an equation we just say:
9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 = the number of different ways
In maths however, we have a much simpler way of saying this, which we call "factorial".
That whole stream of numbers up there can just be said to be "9 factorial", or if we are writing it in an equation "9!". You may find that your calculator has a button which has an "!" on it. If you put in the number of performers and then press the "!" button, it will give you the answer to your question.
Hope this helped you :)
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In 6 hrs, the welder who does 1/15 of the job in 1 hr and the welder who does 1/x in 1 hr, complete the job (6 hrs.)
Multiply 30 on both sides to cancel out the fractions and we get:
Solving for x:
30/x=3
3x=30
x=10
The second welder would take 10 hours.
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It would take him
2.342 / A years
where 'A' = the average weight of apples
that the person eats every single day.
Seven seconds
Nine seconds
11 seconds
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Answer:
38
Step-by-step explanation: