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Vedmedyk [2.9K]
3 years ago
13

What is the subtraction of 4557-2891 plz help ASAP

Mathematics
1 answer:
Delvig [45]3 years ago
4 0

Answer:

1666

Step-by-step explanation:

How to subtract:

1.Subtracting Larger Whole Numbers by Borrowing

2. Write the smaller number directly below it. Make sure that you line up the tens and ones columns, so that the 3 in "32" is directly above the 1 in "17" and that the 2 in "32" is directly above the "7" in 17.

3. Subtract the number in the ones column of the bottom number from the number in the ones column of the top number. Now, this can get a little bit tricky when the bottom number is larger than the top number. In this case, 7 is larger than 2. Here's what you need to do:[1]

You'll need to "borrow" from the 3 in "32" (also known as regrouping), in order to turn that 2 into a 12.

Cross off the 3 in "32" and make it a 2, while making the 2 a 12.

Now, you have 12 - 7, which is equal to 5. Write a 5 below the two numbers you subtracted, so it lines up with the ones column in a new row.

4. Subtract the number in the tens column of the bottom number from the number in the tens column of the top number. Remember that your 3 is now a 2. Now, subtract the 1 in 17 from the 2 above it to get (2-1) 1. Write 1 below the numbers in the tens columns, to the left of the 5 in the ones column of the answer. You should have written 15. This means that 32 - 17 = 15.

5.Check your work. If you want to be sure that you correctly subtracted the two numbers, then all you have to do is to add the answer to the smaller number to make sure that you get the larger number. In this case, you should add your answer, 15, to the smaller number in the subtraction number, 17. 15 + 17 = 32, so you've done your work correctly. Well done!

6.

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Andre45 [30]

Answer:

9y-y-7y+3= y+3

Step-by-step explanation:

Any time there is no number in front of a variable, it's automatically 1, you just don't put the 1 there. So it would be

9y - 1y= 8y

So after you do that, you take the 7y and subtract it from 8y

8y - 7y= 1y

And remember you don't put the 1 so it simplifies to just y.

You simply add or subtract all the numbers with the same variable

I'm not the best at explaining so if you have any questions on it I can answer them in the comments :)

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4 years ago
A container holds 4 gallons of juice how much is this in pints ​
Sladkaya [172]

32 pints is the answer to this question

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3 years ago
When network cards are communicating, bits can occasionally be corrupted in transmission. Engineers have de- termined that the n
ycow [4]

Answer:

a) 11.40% probability of 5 bits being in error during the transmission of 1 kb

b) 11.60% probability of 8 bits being in error during the transmission of 2 kb

c) 0.01% probability of no error bits in 3kb

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the giveninterval.

Poisson distribution with mean of 3.2 bits/kb (per kilobyte).

This means that \mu = 3.2kb, in which kb is the number of kilobytes.

(a) What is the probability of 5 bits being in error during the transmission of 1 kb?

This is P(X = 5) when \mu = 3.2

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 5) = \frac{e^{-3.2}*3.2^{5}}{(5)!} = 0.1140

11.40% probability of 5 bits being in error during the transmission of 1 kb

(b) What is the probability of 8 bits being in error during the transmission of 2 kb?

This is P(X = 8) when \mu = 2*3.2 = 6.4

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 8) = \frac{e^{-6.4}*6.4^{8}}{(8)!} = 0.1160

11.60% probability of 8 bits being in error during the transmission of 2 kb

(c) What is the probability of no error bits in 3kb?

This is P(X = 0) when \mu = 3*3.2 = 9.6

Then

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 0) = \frac{e^{-9.6}*9.6^{0}}{(0)!} = 0.0001

0.01% probability of no error bits in 3kb

7 0
3 years ago
What is the slope of 2×-y=1
Anestetic [448]
Using the slope-intercept form, the slope is -2.
8 0
4 years ago
Read 2 more answers
16. Write the equation of the line graphed below.
tatiyna

Answer:

B) y = -\frac{1}{4}x + 2

Step-by-step explanation:

slope is -1/4

y-intercept is 2

3 0
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