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Murrr4er [49]
3 years ago
8

Thea has a key on her calculator marked X. If an integer is displayed, pressing theX key chops off the first digit and moves it

to the end. For example, if $6138$ is on the screen, then pressing the X key changes the display to $1386$. Thea enters a positive integer into her calculator, then squares it, then presses the X key, then squares the result, then presses the key again. After all these steps, the calculator displays $243$. What number did Thea originally enter?
Mathematics
1 answer:
Irina-Kira [14]3 years ago
6 0

Step-by-step explanation:

jjsjdhhdhdhdhhfhdnjjdjdhshdsh

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Can someone please help me?
melamori03 [73]

Answer:

Answer is B

Step-by-step explanation:

3 0
2 years ago
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Find the probability of exactly three successes in six trials of a binomial experiment in which the the probability of is 50%.
Lyrx [107]

Start by doing the binomial expansion of (x+y)^6 where x represents success. This is

(x^6y^0) + 6(x^5y^1) +15(x^4y^2) +20(x^3y^3) +15(x^2y^4) +6(x^1y^5) +(x^0y^6)

We are interested in the x^3y^3 term which represents exactly 3 sucesses. Since the probalbility of sucess and failure are both .5 we should be able to figure this out just using the coefficients of the terms which is

20/64 = .3125 which is 31.25%

4 0
3 years ago
Factor 125x^3-1000. Show your work.
Salsk061 [2.6K]

The left term is (5x)³.

The right term is 10³.

So, you can use the formula for the factorization of the difference of cubes.

... a³ - b³ = (a-b)(a² +ab +b²)

Here, you have a=5x, b=10, so the factorization is

... 125x³ -1000 = (5x-10)(25x² +50x +100)

4 0
2 years ago
Round 48.078 to the nearest tenth<br><br> 48.1,<br><br> 48.08,<br><br> 50,<br><br> or,<br><br> 48.8
musickatia [10]

your  answer is 48.1

7 0
2 years ago
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A passenger car weighs 4.5 times 10 superscript 3 units. which unit of measure was used? grams ounces pounds tons
Y_Kistochka [10]

Pound is the unit of measure of passengers car weight

According the statement

The weight of passengers car is 4.5 times 10 superscript 3 units.

from this it is clear that the in simple terms the weight become 4.5 * 10^3

AND

the term 10^3 is used when we measure the weight in pounds.

So, Pound is the unit of measure of passengers car weight.

Learn more about WEIGHT here brainly.com/question/2337612

#SPJ4

4 0
1 year ago
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