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
Neko [114]
3 years ago
5

My teacher wouldn't help me.. and this is my last question. I need to know how to find the perimeter of the geometric figure (it

's a parallelogram) The sides are 13/12 cm, 3/13 cm, 13/12 cm, 3/13 cm. The perimeter is (blank) cm. And can you simplify it?
Mathematics
1 answer:
nika2105 [10]3 years ago
5 0
This isn't really a geometry problem.  It's just an addition of fractions.

You know that 'perimeter' means 'the distance all the way around'.
And you know the length of all the sides of the parallelogram.
All you need to do is add them up !

(13/12) + (3/13) + (13/12) + (3/13) = the perimeter

Notice that two of the sides are equal, and the other two sides are also equal.
So you can make the job a little easier if you add up the twelfths first

(13/12) + (13/12) = 26/12

and then add up the thirteenths ...

(3/13) + (3/13) = 6/13 .

Now, the perimeter looks a little bit less complicated.
It's just
                   (26/12) + (6/13) = the perimeter.

This is the tough part.  Before you can add fractions, they need to have
a common denominator. 

The smallest common denominator for 12ths and 13ths is  <em>156 </em>!
Change each fraction to (<em>something over 156</em>), and add um up.
I'll leave that part to you.


You might be interested in
A coffee packaging plant claims that the mean weight of coffee in its containers is at least 32 ounces. A random sample of 15 co
Luda [366]

Answer:

We conclude that the mean weight of coffee in its containers is at least 32 ounces which means that the data support the claim.

Step-by-step explanation:

We are given that a coffee packaging plant claims that the mean weight of coffee in its containers is at least 32 ounces.

A random sample of 15 containers were weighed and the mean weight was 31.8 ounces with a sample standard deviation of 0.48 ounces.

Let \mu = <u><em>mean weight of coffee in its containers.</em></u>

SO, Null Hypothesis, H_0 : \mu \geq 32 ounces     {means that the mean weight of coffee in its containers is at least 32 ounces}

Alternate Hypothesis, H_A : \mu < 32 ounces      {means that the mean weight of coffee in its containers is less than 32 ounces}

The test statistics that would be used here <u>One-sample t-test statistics</u> as we don't know about population standard deviation;

                             T.S. =  \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample mean weight = 31.8 ounces

             s = sample standard deviation = 0.48 ounces

             n = sample of containers = 15

So, <u><em>the test statistics</em></u>  =  \frac{31.8 -32}{\frac{0.48}{\sqrt{15} } }  ~ t_1_4  

                                      =  -1.614

The value of t test statistics is -1.614.

<u>Now, at 0.01 significance level the t table gives critical value of -2.624 at 14 degree of freedom for left-tailed test.</u>

Since our test statistic is more than the critical value of t as -1.614 > -2.624, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which <u><em>we fail to reject our null hypothesis</em></u>.

Therefore, we conclude that the mean weight of coffee in its containers is at least 32 ounces which means that the data support the claim.

8 0
3 years ago
Kendrick Campbell purchased a $25,000 municipal bond at a quoted price of 93.456 the bond pays annual interest at a rate of 3.7%
Anastasy [175]
The interest is $925.
4 0
3 years ago
WHAT IS THE SLOPE PLEASE??
strojnjashka [21]

Answer:

Step-by-step explanation:

take two points on the line ,i take (-4,0) and (0,-2)

slope=(y2-y1)/(x2-x1)=(-2-0)/(0+4)=-2/4=-1/2

6 0
3 years ago
Read 2 more answers
HELP ASAP! What is the slope of the line???
ANEK [815]

Answer: the slope is 1

Step-by-step explanation:

Slope is basically rise over run. Looking at the graph you see it rises one unit and then goes over to the left by one unit. 1÷1 equals 1 so That is your slope.

8 0
2 years ago
HELP GIVING BRAINLIEST!
KengaRu [80]

Answer:

C

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Objects that weigh about 1 kilogram
    6·2 answers
  • Distribute the following expression: 9(2g+5)?
    14·2 answers
  • Q6) Renee buys 5kg of sweets to sell. She pays £10 for the sweets. Renee puts all the sweets into bags. She puts 250g of sweets
    15·1 answer
  • 14. Two line segments are congruent if they have........... length.
    14·1 answer
  • Complete the Square<br> Rewrite into Vertex Form by completing the square.<br><br> 2x^2+ 20x – 1
    14·1 answer
  • Find the perimeter. Round to the nearest whole number.<br> 15 is c and 30 is a)
    13·1 answer
  • PLEADE HELP ILL GIVE BRAINLIST QUESTION IN PHOTO
    12·1 answer
  • PLEASE PLEASE PLEASE HELP I WILL GIVE BRAINLIEST
    6·1 answer
  • A puppy's weight increases by 15% each week for the first 6 months. The puppy currently weighs 3.7 pounds. Which expression will
    10·1 answer
  • Ethan goes to the fair which costs $17.50 for admission and $2.25 for each ride Ethan cab spend no more than $45.50 write an equ
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!