MATHEMATICS HIGH SCHOOL

Hi ... i appreciate you to answer this questuion...\frac{ {x}^(2) }{ {x}^(4) + 1 }
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Answers

Answer 1
Answer:

Answer:

\large \boxed{\sf \ \ (x^2)/(x^4+1)=(1)/(7) \ \ }

Step-by-step explanation:

Hello,

We know that (let's assume that x is different from 0 as we cannot divide by 0)

   x+(1)/(x)=3

and we want to estimate

   (x^2)/(x^4+1)

Let's take the square.

9=3^2=(x+(1)/(x))^2=x^2+2\cdot x \cdot (1)/(x)+(1)/(x^2)=x^2+2+(1)/(x^2)=(x^4+1)/(x^2)+2

So, we can write

(x^4+1)/(x^2)=9-2=7 \n \n\n\text{*** let's take the inverse ***} \n \n(x^2)/(x^4+1)=(1)/(7)

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

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Brad drives 527 miles on 17 gallons. How many miles does Brad drive on one gallon? (5 points + Brainiest!)a
31 miles per gallon
b
527 miles per 17 gallons
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5.27 miles per gallon
d
1 over 31 miles per gallon

Answers

Answer:

d

Step-by-step explanation:

527 / 17 = 31

a researcher studied 30 people ages twenty to forty, 30 people ages forty-one to sixty, and 30 people ages sixty-one to eighty. the researcher set up two rooms—one with a faint rose smell, and one with a faint lemon smell. each participant was asked to enter each room and identify the smell in the room. what research method did the researcher use, and what outcome would be found?

Answers

If the researcher set up two rooms—one with a faint rose smell, and one with a faint lemon smell. each participant was asked to enter each room and identify the smell in the room. The research method that the researcher use , and what outcome would be found is: Cross-sectional. The outcome is: As people grow older their sense of smell decrease.

A cross-sectional is a research that is carried out by collecting data from different group of population or by drawing a random sample from a group of population  in which the researcher will then study or observe the data collected  at a particular period of time.

Based on the given information the researcher is making use of Cross-sectional research method as the researcher what to know how people perceive smell based on their age or how age determine people sense of smell.

The outcome that could be found based on the research is that as people age or grow older their sense of smell decrease or begins to decrease, which simply means that younger people have strongest sense of smell than older people.

Inconclusion If the researcher set up two rooms—one with a faint rose smell, and one with a faint lemon smell. each participant was asked to enter each room and identify the smell in the room. The research method that the researcher use , and what outcome would be found is: Cross-sectional. The outcome is: As people grow older their sense of smell decrease.

Learn more about Cross-sectional here:

brainly.com/question/1900606

Final answer:

The researcher used an experimental method with the type of smell as the independent variable and the identification of the smell as the dependent variable. The outcome would likely reveal differences in odor identification across age groups, with younger ones performing better due to age-related sensory changes.

Explanation:

The research method used in the scenario is known as an experimental method. This technique is adopted in studies where one or more variables are manipulated to analyze the effect on an outcome variable. Here, the independent variable being the type of smell (rose or lemon), and the dependent variable is the identification of the smell. In this experiment, different age groups function as the control variable.

The outcome of the experiment would ideally determine if there's a difference in odor identification across different age groups, and whether the type of scent (rose or lemon) impacts the ability to recognize the odor. Given the information related to sensory changes across different ages found particularly in the sense of smell, it can be postulated that the younger age groups might perform better in identifying the smells correctly. Studies have noted that sense of smell tends to decline after the age of 50.

Learn more about Experimental Research Method here:

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Add.17. (+5) + (-2) + (-1)
18. (-7) + (-6) + (-2)
19. (+11) + (-9) + (-4)
20. (+4) + (-8) + (+6)

Answers

Answer:

17. +5-2-1=+2

18. -7-6-2=15

19. +11-9-4=-2

20.+4-8+6=+2

Order from least to greatest 0.9,7/8,0.86

Answers

.86,  7/8,  .9 is least to greatest

An electric technician is paid $9.60 per hour. Based on 40 hours per week, what is this technicians annual salary?

Answers

Answer:  $19968

Step-by-step explanation: Assuming the electric technician works 52 weeks a year with an average of of $40 of paid work, the electrician would make about $19,968 or close to $20,000 a year.

Final answer:

To calculate the technician's annual salary, multiply their hourly rate by the number of hours worked in a week and then multiply that by the number of weeks in a year. In this case, the technician is paid $9.60 per hour and works 40 hours per week.

Explanation:

To calculate the technician's annual salary, we need to multiply their hourly rate by the number of hours they work in a week and then multiply that by the number of weeks in a year.

In this case, the technician is paid $9.60 per hour and works 40 hours per week. So their weekly salary is $9.60 x 40 = $384. To find their annualsalary, we multiply the weekly salary by the number of weeks in a year, which is 52.

Therefore, the technician's annual salary is $384 x 52 = $19,968.

Learn more about Calculating Annual Salary here:

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Write y=2x^2-4x+12 in vertex form

Answers

This is the answer
y=-2(x+1)^2+8

Answer:

its y=2(x-1)^2+10

Step-by-step explanation:

made a 100
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