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Kisachek [45]
2 years ago
11

After being cut last week, the grass

Mathematics
1 answer:
svp [43]2 years ago
5 0

Answer:

1.53

Step-by-step explanation:

3.28in-1.75in=1.53in

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Listed below are speeds (mi/h) measured from southbound traffic on I-280 near Cupertino, California (based on data from SigAlert
adell [148]

Answer:

Option (B) is the correct answer to the following question.

Step-by-step explanation:

Step-1: We have to find the Mean of the series.

The series is Given in the question 62 61 61 57 61 54 59 58 59 69 60 67.

Mean(\overline{x})=\frac{62+61+61+57+61+54+59+58+59+69+60+67}{12} = 60.67

Step-2: We have to find the Standard Deviation.

Let Standard Deviation be x.

Formula of Standard Deviation is: s= \sqrt{\frac{\sum(x_{i}+\overline{x})}{n-1}}

Put value in formula of Standard Deviation,

s= \sqrt{\frac{(62+60.67)^{2}+(61+60.67)^{2}+(61+60.67)^{2}+(57+60.67)^{2}+....(67+60.67)^{2}}{n-1}} = 40.75

Step-3: Then, we have to find the critical value by chi-square.

X_{1-\alpha/2}^{2}=3.82

X_{1-\alpha/2}^{2}=21.92

Then, find the confidence interval which is 95%.

\sqrt{\frac{(n-1).s^2}{X_{\alpha/2}^{2}} } = \sqrt{\frac{12-1}{21.92}.(4.075)^2 }\approx2.8868 \\ i.e 2.9

\sqrt{\frac{(n-1).s^2}{X_{\alpha/2}^{2}} } = \sqrt{\frac{12-1}{3.816}.(4.075)^2 }\approx6.9188 \\ i.e 6.9

5 0
3 years ago
Change this equation, in standard form, to slope-intercept form: 2x + 3y = 18
Mandarinka [93]

Answer:

y = -2/3 + 18

Step-by-step explanation:

2x + 3y = 18       -----    here is the equation...

-2x          - 2x     -----    bring the 2x to the other side

3y = -2x + 18      -----    now you have to divide everything by 3 to get y by itself

y = -2/3 + 18       -----    Done!

6 0
2 years ago
Read 2 more answers
What is the common denomination for 3/10 and 9/8
4vir4ik [10]

Answer:

80

Step-by-step explanation:

because if you want to find a common denimeter we have mulitly the deometer to find the answer

sorry if it is wrong

8 0
2 years ago
At a bookstore Mrs.McIntyre buys three books, one for each of her children. Each book cost the same amount. She also buys $1.50
TiliK225 [7]

Answer:

X= $3.99

Step-by-step explanation:

X is the value of each book

3 0
3 years ago
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How many days are there from march 15 to september 15 inclusive?
Natasha2012 [34]

March 15 - March 31 = 17 days

April = 30days

May = 31 days

June = 30 days

July = 31 days

August = 31 days

Sept 1 - Sept 15 = 15 days


 total = 185 days

6 0
3 years ago
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