MATHEMATICS HIGH SCHOOL

Solve for f(5). f(x)=x^2-2x

Answers

Answer 1
Answer: f(5)=5^2-2(5)
f(5)=25-10
f(5)=15
15!
Answer 2
Answer:

Answer:

Exact form:

x = √2, −√ 2

Demi cal form:

x=1.41421356…, −1.41421356…

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NO LINKS I WILL REPORT!! but help plsss What is the value of y?
2yº
y + 10°
50°

Answers

Answer:

y=40

I hope it's helps you

A swimming pool is being drained for maintenance. The volume of water in the pool changes by −12 gallons every minute. What is the change in volume over 90 minutes? Enter the your answer in the box.

Answers

Answer:

Step-by-step explanation:

Answer:

-1080

Step-by-step explanation:

1 min = -12

90 min = 90 * (-12) = - 1080

Name ScoreJulia 650
Andrew 550
Jason 380
Cathy 720
Jessica 710
Robert 550
The table gives the scores of 6 students from a class of 25 in a competitive exam. The point estimate of the mean score for the students is _____-
. (Round off your answer to the nearest tenth.)

Answers

Answer

593.3

Explanation

Mean is also called average. It represents the average mark of a given data.

For the question above, you to add all the marks of the students then you divide by the number of students.

Mean = (650+550+380+720+710+ 550)÷6

= 3,560 ÷ 6

=593.3333

Answer to the nearest tenth = 593.3

The point estimate of the meanscore for the students is 593.34 if the number of observation is 6.

What is mean?

It is defined as the single number that represents the mean value for the given set of data or the closed value for each entry given in the set of data.

We know,

Mean = (sum of observation)/(number of observation)

Sum of scores = 650+550+380+720+710+550 = 3560

Number of observation = 6

Mean = 3560/6 = 593.33 = 593.34

Thus, the point estimate of the meanscore for the students is 593.34 if the number of observation is 6.

Learn more about the mean here:

brainly.com/question/22871228

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Lisa gives child(x) and adult(y) haircuts in her salon. She charges $10 for a child and $40 for an adult haircut. Her goal is to make at least $1000 per week and work no more than 40 hours. The shaded region of the graph represents the possible combinations of adult and child haircuts that will allow her to meet her goal. If Lisa gives 60 child haircuts she must give _____ adult haircuts to meet her goal.A: 10

B: 15

C: 20

D: 25

Answers

Answer:D) 40 adult haircuts and no child haircuts

Sam’s Music Store wanted to take a survey of the age range of people that visited the store. Over the course of a week, they asked 40 people their age as they walked in. Below is a box plot of the collected data. Answer the following questions about the box plot in relation to the problem. 1.When Sam’s assistant was collecting the data she mistakenly noted that the oldest person was 48. The oldest person was actually 50. How will this affect the box plot?

Answers

A box plot contains 5 number summary. The information gathered from the box plot are:
1) minimum number
2) 1st quartile
3) median
4) 3rd quartile
5) maximum

Since the box plot of the collected data is not shown, I can only say that the maximum number will be affected by the error.

maximum number of 48 should have been maximum number 50.

Which equation has the same solution as x²- 6x - 12 = 0

Answers

Hey There Baby and, Welcome to Brainly 

Which equation has the same solution as x²- 6x - 12 = 0

 x^2 - 6x = 12 

x^2 -6x + 9 = 12+9 

x^2 -6x + 9 =21 

(x-3)^2 = 21

So the answer will be (x-3)^2=21 
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The function f(x) = 5()x is reflected over the y-axis. Which equations represent the reflected function? Check all that apply.f(x) = (5)x f(x) = (5)–x f(x) = ()x f(x) = 5()–x f(x) = 5(5)x f(x) = 5(5)–x