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iogann1982 [59]
3 years ago
15

Let f(x) = x^2+1 / x-2

Mathematics
1 answer:
grigory [225]3 years ago
8 0

Answer:

x2+1 / x-2 × x2+1 /x2+1

(x2+1)2

=_________

x2-1

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Please help me with this word problem!
IRISSAK [1]

Answer:

f(g)=25g

Step-by-step explanation:

Let g be the number of gallons so f(g) is the number of miles traveled per g gallons.

We know for our problem that Brian's car gets 25 miles per gallon. Since the gallons is represented by g, his car will travel a total distance of 25g (where g is the number of gallons.

We also know that the total distance is given by f(g), so we can put the two expressions together to get our function:

f(g)=25g

Let's check:

- If he uses 1 gallon (g=1), so

f(1)=25(1)

f(1)=25 miles

He will travel 25 miles with one gallon.

- If he uses 2 gallons (g=2), so

f(2)=25(2)

f(2)=50

He will travel 50 miles with two gallon.

6 0
3 years ago
Listed below are the salaries, in $000, for a sample of 15 chief financial officers in the electronics industry.
Tcecarenko [31]

Answer:

a)

Mean = sum of all numbers in dataset / total number in dataset

Mean = 8130/15 = 542

Median:

The median is also the number that is halfway into the set.

For median, we need to sort the data and then find the middle number which in our case is 546. Below is the sorted data

486  516 523  523  529  534  538  546  548  551  552  558  566  574  586

Standard Deviation (SD).  Here X represents dataset and N= count of numbers in data

As per the SD formula, which is Sqrt ( sum (X_i - Meanx(X))/(N-1))

SD= 25.082

2) Formula for coefficient of skewness using Pearson's method (using median) is,

SK = 3* ( Mean (X) - Median(X))/(Standard Deviation) =  3*(542-546)/25.082 = -0.325

3) coefficient of skewness using the software method is also same which is -0.325

4 0
3 years ago
Which expression is equivalent to 83⋅ 8−7? (1 point) flv
aliya0001 [1]

Answer: 83.8 +7

Step-by-step explanation:

im not sure what to go off of

4 0
4 years ago
how many fewer rainy days are there than sunny and cloudy days when there are 6 sunny days, 4 cloudy days and 7 rainy days
Cloud [144]
3 more fewer days because 6+4=10 and 10-7=3.

Hope that helped:)
8 0
4 years ago
Stefan plants seeds for 30 carrot plants and 45 beet plants in 5 rows, with the same number of seeds in each row. How many seeds
Delvig [45]

There are 6 seeds in carrot and 9 beets because 30 divide by 5 equals 6 and 45 divide by 5 equals 9.

4 0
3 years ago
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