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2 years ago

I need help with question 10 (math work is about adding fractions with putting them in simplest form)

Mathematics

1 answer:

goldenfox [79]2 years ago

8 0

Answer: The answer is equivalent fractions.

Step-by-step explanation:

I hope this helped you! :D

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Choose the unit that measures distance

Anna11 [10]

Answer:

Feet

Step-by-step explanation:

8 0

2 years ago

1.02 X 10^2<br>8.54 X 10^-3<br>6.83 x 10^-4<br>9.12 X 10^-6

defon

Answer:

Step-by-step explanation:

1.02 X 10^2=102

8.54 X 10^-3=00.854

6.83 x 10^-4=0.000683

9.12 X 10^-6=00000.0912

3 0

2 years ago

Factor f(x)=x4+x3-20x2.

Leya [2.2K]

Hello from MrBillDoesMath!

Answer:

-5, 0 (multiplicity 2), +4

Discussion:

Let f(x) = x^4 + x ^3 - 20 x^2

Factor x^2 from each term:

f(x) = x^2 ( x^2 + x - 20) = x^2 ( x +5) (x-4)

f = 0 when x = 0 (multiplicity 2) and x = -5 or x = 4

Regards,

MrB

7 0

2 years ago

Which term best describes a proof in which you assume the opposite of what you want to prove? A. Proof by syllogism B. Proof by

Vilka [71]

That is Proof by Contradiction.
The famous one is the proof of the square root of 2 is irrational . First done by Euclid

8 0

2 years ago

Read 2 more answers

According to the U.S. National Transportation Safety Board, the number of airline accidents by year from 1983 to 2006 were 23, 1

Lera25 [3.4K]

Answer:

$\bar X= 33.79167$

$s= 12.06497$

$SE= \frac{s}{\sqrt{n}}= \frac{12.06497}{\sqrt{24}}=2.463$

$Median= \frac{30+31}{2}= 30.5$

Step-by-step explanation:

For this case we have the following data:

23, 16, 21, 24, 34, 30, 28, 24, 26, 18, 23, 23, 36, 37, 49, 50, 51, 56, 46, 41, 54, 30, 40, and 31

We can calculate the sample mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X= 33.79167$

Then we can calculate the standard deviation with this formula:

$s= \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And replacing we got:

$s= 12.06497$

And the sample size for this case is n =24. We can calculate the standard error with this formula:

$SE= \frac{s}{\sqrt{n}}= \frac{12.06497}{\sqrt{24}}=2.463$

And the median for this case since the sample size is 24 first we need to sort the data on increasing order and we got:

16 18 21 23 23 23 24 24 26 28 30 30 31 34 36 37 40 41 46 49 50 51 54 56

And for this case the median would be the average from the position 12 and 13 and we got:

$Median= \frac{30+31}{2}= 30.5$

4 0

3 years ago