1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
masha68 [24]
3 years ago
15

Can somebody help me please

Mathematics
2 answers:
Mrrafil [7]3 years ago
6 0
L. 15-3 = 12,
W. 24 = 12x2

N-3 “third power/cube root”
N-3 “third power/cube root”
2
2
Sergeu [11.5K]3 years ago
3 0
Area = length x width

24 = (n-3) x 2
24 = 2n -6
2n = 30
n = 15

Length is 15-3 =12, width is 2
24 = 12 x 2
You might be interested in
Type the correct answer in the box. Round your answer to the nearest hundredth.
AURORKA [14]

Check the picture below.

4 0
3 years ago
Can you please help
Free_Kalibri [48]

Answer:

The answer to the question provided is

\frac{9}{5}

Step-by-step explanation:

T

4 0
3 years ago
Although companies would like consumers to believe that Identity theft protection is an
stiks02 [169]

The obtained answers for the given frequency distribution are:

(a) The formula for the mean in sigma notation is \bar x =\frac{1}{n}  \sum X_i where n is the number of observations; X_i are the n observations.

The mean for the given monthly plan price is $16.1.

(b) The frequency distribution for given data is {$9.99 - 2; $10 - 5; $12 - 1; $12.75 - 2; $14.99 - 6; $20 - 4; $25 - 5}

(c) The formula for the mean using the frequency distribution table is \bar x = \frac{1}{N}\sum f_ix_i where N =\sum f_i and on applying this formula for the given data, the mean is $16.1.

(d) The median for the given data is m_e = 14.99, and the mode for the given data is $14.99

<h3>What are the mean, median, and mode for a frequency distribution?</h3>

The frequency distribution has sample observations x_i and frequencies f_i.

Then, the mean is calculated by

\bar x = \frac{1}{N}\sum f_ix_i

Where N =\sum f_i (Sum of frequencies)

The median is calculated by

m_e=\left \{ {{x_{k}} \ if \ n = 2k+1 \atop {\frac{x_{k}+x_{k+1}}{2}} \ if \ n =2k} \right.

The mode is calculated by

Mode = highest frequency value

<h3>Calculation:</h3>

The given list of data is

{$14.99, $12.75, $14.99, $14.99, $9.99, $25, $25, $10, $14.99, $10, $20, $10, $20, $14.99, $10, $25, $20, $12, $14.99, $25, $25, $20, $12.75, $10, $9.99}

(a) Formula for the mean using sigma notation and use it to calculate the mean:

The formula for the mean is

\bar x =\frac{1}{n}  \sum X_i

Where n = 25; X_i - n observations

On substituting,

Mean \bar x

=1/25(14.99+12.75+14.99+14.99+9.99+25+25+10+14.99+10+20+10+20+14.99+10+25+20+12+14.99+25+25+20+12.75+10+9.99)

= 1/25(402.42)

= 16.09 ≅ 16.1

(b) Constructing a frequency distribution for the data:

Cost - frequency - cumulative frequency

$9.99 - 2 - 2

$10 - 5 - 7

$12 - 1 - 8

$12.75 - 2 - 10

$14.99 - 6 - 16

$20 - 4 - 20

$25 - 5 - 25

Sum of frequencies N = 25;

(c) Using frequency distribution, calculating the mean:

The formula for finding the mean using frequency distribution is

\bar x = \frac{1}{N}\sum f_ix_i

Where N = 25;

On substituting,

\bar x<em> </em>= 1/25 (2 × 9.99 + 5 × 10 + 1 × 12 + 2 × 12.75 + 6 × 14.99 + 4 × 20 + 5 × 25)

  = 1/25 (402.42)

  = 16.09 ≅ 16.1

Therefore, the mean is the same as the mean obtained in option (a).

(d) Calculating the median and the mode:

Since N = 25(odd) i.e., 2· 12 + 1; k = (12 + 1)th term = 13th term

So,  the median m_e = 14.99. (frequency at 13th term)

Since the highest frequency is 6 occurred by the cost is $14.99,

Mode = 14.99

Learn more about frequency distribution here:

brainly.com/question/27820465

#SPJ9

7 0
2 years ago
The length of a rectangle is 15 inches, and its width is 10 inches. If the area must remain 150 square inches, and the length is
Crazy boy [7]

Answer:

3.33333

Step-by-step explanation:

You have to put:

If 15 ------------- becomes 5

then 10--------- becomes X

like this type of rule says, you should do:

(10x5)/15= 3.33333

8 0
3 years ago
Please help with this question
puteri [66]
The answer i found to be is C

4 0
3 years ago
Other questions:
  • Draw a bar model that shows a pen is 4 times as long as an araser is 1 1/3
    8·1 answer
  • What is the vertex for y=4(x-1)(x-7)
    11·1 answer
  • Look at the figure shown below:
    12·2 answers
  • 8th out of 10 questions 2
    12·2 answers
  • What is -35 divided by -7 as a fraction
    10·1 answer
  • your test grades are 85,74, and 91. What is the lowest grade you can get on the next test and have an average of at least 80
    8·2 answers
  • Which is equivalent to P(z ≥ 1.4)?
    10·2 answers
  • A company sells floats for children. An equation that models their profit is P=4x-10,000 , where x is the number of floats sold.
    5·2 answers
  • HELP HELP HELP HELP HELP
    8·2 answers
  • Max earns $9.30 per hour does part time job how much money will max earn if he works 1,5,8,H hours also how many hours will he w
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!