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faltersainse [42]
2 years ago
8

an art teacher has 28 students in her first period class and 24 in her second period class if almost 30 of the students in these

classes are boys about how many boys are in her first two class
Mathematics
2 answers:
tatiyna2 years ago
6 0

Answer:

im not sure if this answer is correct but i think its 22

Klio2033 [76]2 years ago
6 0

Answer:

22

Step-by-step explanation:

you just have to find the common number between both

https://rachelmarley.weebly.com/

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Can u help and explain plz
ANEK [815]

Answer:

look close because that is the question

Step-by-step explanation:

3 0
3 years ago
What are the solutions of x2 = 8 - 5x?
jonny [76]

Answer:

That can be re-written:

x^2 + 5x -8 = 0

We use the Quadratic Formula

a=1

b = 5

c = -8

x = [-b +- sq root (b^2 - 4ac) ] / 2a

x = [-5 +- sq root (25 - - 32)] / 2

x1 = [-5 + sq root (57)] / 2

x1 = 1.27491722

x2 = [-5 - sq root (57)] / 2

x2 = -6.2749172176

Step-by-step explanation:

5 0
3 years ago
Hey guys I need some help with #7 so if anyone could help that would be great THANK YOU!!
iVinArrow [24]

The average rate of change obtained from the ratio of change in y to the change in x is 27

The average rate of change can be obtained using the relation :

Rate of change = (y2 - y1) ÷ (x2 - x1)

at; x1 = -3

y1 can be calculated from the function ;

y1= 3(-3³)-1

y1=-82

At ; x2 = 3

y2 can be calculated from the function ;

y2 = 3(3³)-1

y2=80

The rate of change can be calculated thus : (y2 - y1) ÷ (x2 - x1)

[80-(-82)]/[3-(-6])

162/6

27

Learn more about the average rate of change here:

brainly.com/question/18550782

#SPJ1

8 0
1 year ago
Day Care Tuition A random sample of 50 four-year-olds attending day care centers provided a yearly tuition average of $3987 and
olasank [31]

Answer:

We have to find the 90% confidence interval for the mean

                 Given sample size  

                        Sample mean  

Population standard deviation  

Here the confidence level is 90% then  

                                                  And  

The 90% confidence interval is  

Here  is the critical value at 0.05

From the tables  

Now the 90% confidence interval is =

                                                                                     =

                                                                                     =(3840.44, 4133.56)

Hence the 90% confidence interval for the mean is (3840.44, 4133.56)

5 0
2 years ago
Which conclusion does the diagram support?
spin [16.1K]

Answer:

C. AB/BC=FE/ED

Step-by-step explanation:

8 0
3 years ago
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