All categories

3 years ago

Needs to be checked.............

Mathematics

2 answers:

Lubov Fominskaja [6]3 years ago

7 0

B. is the correct answer you got it right

Malory your fellow helper

blondinia [14]3 years ago

7 0

That should be right

You might be interested in

Function g is a transformation of the parent quadratic function f. Which statements are true about this function?

sergey [27]

Answer: Function g reflected function f across the x-axis.

For function g, as x approaches negative infinity, g(x) approaches negative infinity.

Function f is symmetrical about the point (4,6).

4 0

3 years ago

Simplify the expression. Explain each step: 1. 3.5 + (x + 2.7) 2. (8 x k) x 4

barxatty [35]

In a way, you are adding like terms.
3.5 + 2.7 = 6.2, therefore making the answer 6.2 + x

The brackets can be ignored so you are really just asked 8 x 4 x k. 8 x 4 =32 so you end up with 32k

8 0

3 years ago

4. You purchase 3 items for $4.23. About how much did you spend? $15 $12 $10 $13

statuscvo [17]

Answer:

you spend around 12 dollars to be exact 12.69 ha nice

7 0

2 years ago

Read 2 more answers

Which sample fairly represents the population? Check all that apply. measuring the heights of every fiftieth person on the schoo

solniwko [45]

Option 1:

Measuring the heights of every fiftieth person on the school roster to determine the average heights of the boys in the school

Comment: this might not be a good idea for fairness as we only wish to determine average height of the boys. Taking a group of 50 people randomly, might not give us the same number of boys every time.

Option 2:

Calling every third person on the soccer team’s roster to determine how many of the team members have completed their fundraising assignment

Comment: The context doesn't seem to need a sampling. The number of players in a soccer team is considerably small. We can find exact data by asking in person.

Option 3:

Observing every person walking down Main Street at 5 p.m. one evening to determine the percentage of people who wear glasses

Comment: To get a more accurate result and fairer sampling, the period of observing could have been longer, for example, observing for 12 hours on that day, or an alternative is to observe at 5 pm for 7 days in a row. It could happen that no one walking down the Main street precisely at 5 pm wears glasses, or it could happen the other way around.

Option 4:

Sending a confidential e-mail survey to every one-hundredth parent in the school district to determine the overall satisfaction of the residents of the town taking a poll in the lunch room (where all students currently have to eat lunch) to determine the number of students who want to be able to leave campus during lunch.

Comment: This sampling does fairly represent the population, although it might be an idea to scale down the sample population, i.e. every fiftieth parent.

Answer: Option 4

5 0

3 years ago

Read 2 more answers

Stacey, Mia, and Harper want to make invitation cards for the annual school dance. It would take Stacey and Mia 4 hours each to

Reptile [31]

The rate of doing work is the ratio of work and time. The time it will take for all of them to make the invitation cards is 1.2 hours.

<h3>What is the relation between work, rate, and time?</h3>

The rate of doing work is the ratio of work and time. Therefore, the relation between the work, rate of doing work and time is,

Rate of doing work = Work / Time

Assume the total work to be represented by x.

Given that It would take Stacey and Mia 4 hours each to do the job. Therefore, the rate at which Stacey and Mia both work can be written as,

Stacey's rate of working = Mia's rate of working = Work/time = x/4

Also given that Harper alone could do the job in 3 hours. Therefore, the rate at which Harper will work is,

Harper's rate of working = x/3

Now, the rate at which the three of them will work together is,

Rate of all three = (x/4) + (x/4) + (x/3)

= (3x/12) + (3x/12) + (4x/12)

= 10x/12

= 5x/6

Further, the time it will take for all of them to make the invitation cards are,

Time = Work/ Rate of working

Time = x/(5x/6) hours

Time = 6x/5x hours

Time = 1.2 hours

Hence, the time it will take for all of them to make the invitation cards is 1.2 hours.

Learn more about Work, time and rate here:

brainly.com/question/23308203?referrer=searchResults

#SPJ1

5 0

1 year ago