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Stells [14]
2 years ago
11

Which statement is true about the polynomial 3j4k−2jk3+jk3−2j4k+jk3 after it has been fully simplified?

Mathematics
1 answer:
tamaranim1 [39]2 years ago
3 0

Answer:

j^4k

Step-by-step explanation:

3j^4k-2jk^3+jk^3-2j^4k+jk^2\\2j^4k-2j^4k-2jk^3+jk^3+jk^3\\j^4k

You might be interested in
Charlotte is running at a rate of 9\,\dfrac{\text{km}}{\text{h}}9 h km ​ 9, start fraction, start text, k, m, end text, divided
OverLord2011 [107]

Answer:

2.5 meters per second

Step-by-step explanation:

Given,

The speed of Charlotte = 9 km/h

That is, the distance covered in 1 hour = 9 km,

∵ 1 km = 1000 m

So, the distance covered in 1 hour = 9000 m,

∵ 1 hour = 60 minutes and 1 minute = 60 seconds,

⇒ 1 hours = 3600 seconds,

∴ The distance covered in 3600 seconds = 9000 m,

⇒ Distance covered in 1 second = \frac{9000}{3600} = 2.5 m,

Hence, his/her speed = 2.5 meters per second

5 0
2 years ago
Suppose that cot θ = c and 0 < θ < π 2 . what is a formula for sin θ in terms of c?
matrenka [14]
For this case we have the following equation:
 cot θ = c
 Rewriting we have:
 cosine (θ) / sine (θ) = c
 From here, we must clear the value of the sinus (θ).
 We have then:
 sine (θ) = (1 / c) * cosine (θ)
 Answer:
 
a formula for sin θ in terms of c is:
 
sine (θ) = (1 / c) * cosine (θ)
8 0
2 years ago
Read 2 more answers
James surveyed people at school and asked whether they bring their lunch to school or buy their lunch at school more often. The
azamat

Answer:P(male | buys lunch) = 0.4 and P(male) = 0.3.

Step-by-step explanation:

There are 46+176 = 222 males.

There are 254+264 = 518 females.

There are a total of 740 people.

The probability of being male is 222/740 = 0.3

There are 46+254 = 300 people that bring lunch.

There are 176 + 264 = 440 people that buy lunch.

P(male | buy lunch) = 176 / 440 = 0.4

P(male | buys lunch) = 0.4 and P(male) = 0.3.

8 0
2 years ago
Find the 12th term of the geometric sequence 2, -8,32, ...
Stells [14]

Answer:

-8388607

Step-by-step explanation:

a = 2

r = -8/2 = -4

12th term = (2)×(-4)¹¹

= -8388608

7 0
2 years ago
Read 2 more answers
A hockey coach recorded the number of shots taken by the home team and the number taken by the visiting team in 20 games. He dis
Harrizon [31]

Answer:

The most accurate inference from this boxplot is that: The visiting team had more variability in the number of shots taken.

Step-by-step explanation:

The box and whiskers plot is a way of presenting data that gives 5 major information about the distribution

From the whiskers of the plot, one can read

- The minimum value

- The maximum value

Then, from the boxplot, one can read

- The Median, represented by the middle line of the boxplot.

- The first Quartile or 25th percentile, represented by the lower end of the boxplot.

- The third quartile or 75th percentile, represented by the upper end of the boxplot.

Other variables that can be obtained from these five data points include

- The range of the distribution (maximum value minus minimum value)

- The interquartile range (a measure of variation, which is the difference between the third and first quartile of the distribution)

For the two boxplots that the coach made

Home team

Whiskers range from 16 to 32

Minimum value = 16

maximum value = 32

the box ranges from 20 to 23. A line divides the box at 22.

First quartile = 20

Third quartile = 23

Median = 22

IQR = 23 - 20 = 3

For the visiting team

Whiskers range from 14 to 32

Minimum value = 14

maximum value = 32

the box ranges from 16 to 24. A line divides the box at 18.

First quartile = 16

Third quartile = 24

Median = 18

IQR = 24 - 16 = 8

Since the median only represents the midpoint of the distribution, one cannot conclude with certainty that home team took more shots than the visiting team, information on the mean would confirm that.

A less controversial and evident inference is that the visiting team had more variability in their shots as their distribution has a higher Interquartile Range (IQR of 8 > 3) which is a direct measure of variation for distributions.

Hope this Helps!!!

7 0
2 years ago
Read 2 more answers
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