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Setler79 [48]
3 years ago
6

Simplify 2x-{3x-[x-(2x-1)]}

Mathematics
1 answer:
vlada-n [284]3 years ago
3 0

Answer:

Step-by-step explanation:

Working from the inside out, we take it one bracket at a time

2x-{3x-[<u>x-(2x-1</u>)]}

let's tackle the underlined prolem first

x-(2x-1)

= x-2x+1

= -x+1..we can also write this as 1-x if need be

So we now have (2x-(<u>3x-(-x-1)))</u>

Again, we tackle the undelined problem first

3x-(-x-1)

= 3x+x+1

= 4x+1

So we now have 2x-(4x+1)

Now we can tackle this together

= 2x-4x-1

= -2x-1

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2x+5y when x-3 and y -2
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Answer:

-16

Step-by-step explanation:

2*-3+5*-2=-16 Hope this helps :D

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8 0
2 years ago
Lloyd's Cereal company packages cereal in 1 pound boxes (16 ounces). A sample of 36 boxes is selected at random from the product
Reptile [31]

Answer: 0.0304

Step-by-step explanation:

A z-test is a statistical test that is used to determine if two population means are different when the variances are known and the sample size is large. The test statistic is assumed to have a normal distribution, and nuisance parameters such as standard deviation should be known in order for an accurate z-test to be performed.

A z-statistic, also known as z-score, is a number representing how many standard deviations above or below the mean population a score derived from a z-test is.

Therefore,

sample size,n = 36

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standard deviation,s = 0.2 pounds = 3.2 ounce

x = 15 ounce

z = (x-u) / (s/sqrt(n)) = -1.875

In conclusion, the probability that the amount dispensed by box will be increased is:

P(X<15) = P(Z<-1.875)

= 1 - P(Z<1.875)

= 1 - 0.9696

0.0304

The Answer is 0.0304.

4 0
3 years ago
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Write the value of the 6 in 106,534
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0 = tens of thousandths.

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3 = tenths.

4 = units.
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2 years ago
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From a standard deck of cards, what is the probability that you draw a diamond, replace it and then draw a club?
Crank

Answer:

25% most likely

Step-by-step explanation:

If you divide the numbers by 100 then you get ez answer XD

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B. The total cost (1) after 8% sales tax is added to an item's price (p): 1.08p =
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Step-by-step explanation:

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