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
NNADVOKAT [17]
3 years ago
13

Calculate the perimeter of a regular pentagon which has a side of 9cm

Mathematics
1 answer:
Alisiya [41]3 years ago
8 0
The answer is 45. there are 5 sides. each one is 9cm. 9*5= 45. 
hope this helps.
You might be interested in
The enthalpy of a reaction can be measured using a _____.
Harman [31]
The enthalpy of a reaction can be measured using a Calorimeter
4 0
3 years ago
Read 2 more answers
If y=3 when x=9 find x when y=1<br> &amp; if y=2 when x=0.5 find y when x=3
hram777 [196]
I got -19/655 and i know for sure this isnt the correct answer.
4 0
3 years ago
In a paint mixture the following tints are added,200ml of green tint,350ml of blue and 450ml of red tint.Calculate the percentag
dimaraw [331]

Answer:blue = red

Step-by-step explanation:

Is purple 3+1 is 4

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=2x%28x%20-%202%29%5E%7B2%7D%20%20%2B%203x%28x%20%2B%203%29%5E%7B2%7D%20%20-%20x%5E%7B2%7D%20%2
Ratling [72]

= x·[2(x²- 4x + 4) + 3(x² + 6x + 9) - x² + 5x]

= x(2x² - 8x + 8 + 3x² + 18x + 27 - x² + 5x)

= x(4x² + 15x + 35)

5 0
3 years ago
PLEASE HELP I NEED THIS ASAP ! 100 POINTS!!
Finger [1]

Answer:

Part A: The population are the American adult citizens, excluding the ones from Alaska and Hawaii. The population is the people which the sample is trying to represent, as a hole.

The sample is a portion of this population, and in this case is represented by a randomly selected amount of people whose response to the interview has been selected.

Part B: The sample here has been selected in two steps. The first step is the one that we must pay attention to: the numbered list of one million responses from around the US (excluding Alaska and Hawaii). Because these responses were obtained by an online survey, the sample looks like a convenience sampling, as it depends on the availability and willingness from participants to take part of the study (is not compulsory for everyone, so not everyone is going to response, then there are people that is not going to be represented by). The second step is the random selection of a part of the previous responses. This last part will ensure that, the individuals that took part of the group that was interviewed, are well represented in the results.

Part C: As it was mentioned, there is a selection bias, because the information from the sample comes from a specific group of people that has certain features that may not represent all American adults citizens. For example, the opinion of  those people who do not use internet, will not be considered (and they may be a large number of persons). This situations weaken the conclusions obtained in the study, as they are not representative of the hole population.

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • NEED HELP ASAP!!!
    12·1 answer
  • Multiply.
    14·1 answer
  • I need help on this problem. It is about absolute values, so here is the question:
    11·1 answer
  • Question: A man standing in a field in New Hampshire sees Cannon Mountain in front of him. He knows that the height of Cannon Mo
    11·1 answer
  • Giovani solves a system of equations algebrically he concludes that the lines are parallel which could be the final of his solut
    8·1 answer
  • 20 POINTS‼️‼️Which of the following does NOT represent the number of months in a year?
    9·2 answers
  • Jill had 2 apples. Addy gave Jill 5 more apples. How many apples does Jill have altogether? Mark, you brainlieest if correct!
    7·2 answers
  • Help ASP NEEDS DONE HELPPPPPPP
    11·2 answers
  • Two​ trains, Train A and Train​ B, weigh a total of 318 tons. Train A is heavier than Train B. The difference of their weights i
    5·2 answers
  • What is (-1) - (-3) Pre-Algebra
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!