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liraira [26]
3 years ago
8

How many different ways can the letters of "barrette" be arranged?

Mathematics
1 answer:
olga2289 [7]3 years ago
7 0

Answer:

5040

Step-by-step explanation:

8!/(2!x2!x2!)

8 letters in the word / 2r's 2e's 2t's

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Determine the area of the following shapes.<br> a. 144 in<br> b. 154 in<br> c. 164 in
ArbitrLikvidat [17]

A) 144 in

is your answer. good luck

6 0
2 years ago
louise bought 80 metres of fencing to make an enclosure for her pet dog .tommy if louise expects a rectangular enclosure what is
OleMash [197]

Answer:

400 m^2.

Step-by-step explanation:

The largest  area is obtained where the enclosure is a square.

I think that's the right answer because a square is a special form of a rectangle.

So the square would be 20 * 20  = 400 m^2.

Proof:

Let the  sides of the rectangle be x and y m long

The area A = xy.

Also the perimeter  2x + 2y = 80

x + y = 40

y = 40 - x.

So substituting for y in A = xy:-

A = x(40 - x)

A = 40x - x^2

For maximum value of A  we find the derivative and equate it to 0:

derivative A' =  40 - 2x = 0

2x = 40

x = 20.

So y = 40 - x

= 40 - 20

=20  

x and y are the same value so x = y.

Therefore for maximum area the rectangle is a square.

3 0
3 years ago
If x= 27 and y= 54 then what does w equal
beks73 [17]
The answer is 81 because 27 x 3
4 0
3 years ago
Read 2 more answers
Solve for x<br> Urgent need help
fiasKO [112]
I believe you need to solve this using the quadratic formula!
To begin, this is what it is:
x= -b ± <span>√ b^2 - 4ac / 2a
Just plug in what you have in your problem...
2 being a, 13 being b, and -24 being c.
So we get:
x= -13 </span>± <span>√13^2 - 4(2)(-24) / 2(2)
x= -13 </span><span>± √169 - 8 (-24) / 4</span>
<span>x= -13 <span>± √169 + 192 / 4</span>
x= -13 </span>± √<span>361 / 4
The square root of 361 is 19.
So you have: -13 </span><span>± 19 / 4.
Here's where you take the equation </span>-13 <span>± 19 and put the addition and subtraction sign to use.
-13 - 19 = -32
and
-13 + 19 = 6
Now all is left to do is divide the two numbers by 4.
-32/4 = -8
and
6/4 = 3/2

x = -8, 3/2</span>
6 0
3 years ago
Here is a situation: I have $5. I save $2 each week. How many weeks do I need to save until I have at least $50? Write the inequ
Irina18 [472]
22 weeks because you already have 5 dollars so the other answer is wrong
7 0
3 years ago
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