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Olegator [25]
3 years ago
8

The area of a rectangle is x 2 – 3x – 28. If the width is (x – 7), what is the length? (hint: it is a binomial)

Mathematics
1 answer:
satela [25.4K]3 years ago
7 0

Answer:

(x + 4)

Step-by-step explanation:

By factoring the area expression we obtain  the length, that is

x² - 3x - 28

Consider the factors of the constant term (- 28) which sum to give the coefficient of the x- term (- 3)

The factors are - 7 and + 4 , since

- 7 × 4 = - 28 and - 7 + 4 = - 3 , then

x² - 3x - 28 = (x - 7)(x + 4)

with width (x - 7) and length (x + 4)

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Of the 17 students in a programming class, 6 own 1 computer, 3 own 2 computers, 3 own 3 computers, 2 own 4 computers, and 3 own
AlexFokin [52]

The median number of computers owned by the 17 students is 2.

<h3>What is median in statistics?</h3>

A dataset's median represents the midpoint; half of the data points are smaller and half are greater than the median.

Identifying the median: The data points should be arranged from smallest to largest. The median is the middle data point in the list if the number of data points is odd.

The total number of students are 17.

The data can be arranged in the following table

number of students        number of computers

             6                                         1

             3                                         2

             3                                         3

             2                                         4

             3                                         5

Arrange the given frequencies in the increasing order-

1 1 1 1 1 1 2 2 2 3 3 3 4 4 5 5 5

The middle term of the arrange frequencies is 17/2 = 8.5

Median = (8 term + 9 term)/2

            = (2 + 2)/2

            = 2

Therefore, the median number of computers owned by the 17 students is 2.

To know more about the median, here

brainly.com/question/8892632

#SPJ4

The correct question is -

Of the 17 students in a programming class, 6 own 1 computer, 3 own 2 computers, 3 own 3 computers, 2 own 4

computers, and 3 own 5 computers. What is the median number of computers owned by the 17 students?

7 0
2 years ago
ITS URGENT I WILL YOU GIVE BRAINLEST(if you are the first and the best)!!!
Inga [223]

Answer:

2 Hours

Step-by-step explanation:

First you have to add up all the points which would be;

1 1/2 + 1 1/2+ 2 1/2+ 2 1/2= 8 hours

Then you have to divide by how many points to find the average;

8 hours divided by 4 points= 2 hours average

In total, she will practice 2 hours every day

6 0
2 years ago
A triangle has the side lengths 5, 7, and 11. Which term best describes the triangle?
Pavlova-9 [17]
It is a scalene triangle bc it has no equal sides
4 0
3 years ago
To divide 343 by 9, would you use partial quotients or the division algorithm? Explain the reasoning.
Katarina [22]
To divide 343 by 9, you will use the division algorithm.

The reason is because 343 is not divisible evenly by nine.

You know this because the sum of the digits, 3+4+3 or 10, is not evenly divisible by 9.

Therefore, 343 is not evenly divisible by 9.
7 0
4 years ago
If 150 students ware red and 250 students dont. what percentage of students wore red​
Anettt [7]

# of students who wore red = 150

# of students who did not wear red = 250

Total #. of students = 150 + 250

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Percentage of students who wore red =

(# of students who wore red/Total #) * 100 = (150/400) * 100 = 37.5

∴ No of students who wore red = 37.5%

4 0
4 years ago
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