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ad-work [718]
2 years ago
15

Workout the lowest integer

Mathematics
1 answer:
V125BC [204]2 years ago
5 0

Answer:

x ≥ 9/2

Step-by-step explanation:

5x - 2 ≥  3x + 7

2x ≥ 9

x ≥ 9/2

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In the United States, there has historically been a strong relationship between smoking and education, with well-educated people
Paraphin [41]

Answer:

The proportion of former smokers with a university education is (A) 0.15

The proportion of men with a high school education that are current or former smokers is (B) 0.30

The degrees of freedom for the chi-square test for this two-way table are (B) 6

Step-by-step explanation:

The first thing to note is the two way table and ensure the proper arrangement of the figures in the table (Kindly find attached a picture of how the table should look)

Now, on to the first question on the former smokers with a university education = (43+28)/459 = 71/459 = 0.15 which is option A. [This is the total sum of former smokers with college and graduate school education].

The second question on the proportion of men with a high school education that are current or former smokers = (54+31+36)/459 = 0.285 = 0.30 (approximate value) which is option B.

The third question on the degrees of freedom for the chi-square test for this two-way table can be found with the formula DF = (r-1)(c-1) where,

DF = Degree of freedom ,

r = number of rows = 3

c = number of columns = 4 [<em>Kindly note that you have to exempt the row and columns with the totals</em>]

Therefore, DF = (3-1)(4-1) =2*3 = 6 which is option B.

6 0
2 years ago
A watch gains 18 seconds in a day. how many minutes will the watch gain in 3 weeks?
nordsb [41]
6.3 minutes: 6 minutes and 20 seconds, I believe.
7 0
3 years ago
Read 2 more answers
A jewellery shop sells 240 necklaces in a month 180 of the necklaces were sold via the shop website work out the simplest form
Dovator [93]

Answer:

3 : 1

Step-by-step explanation:

A jewellery shop sells 240 necklaces in a month 180 of the necklaces were sold via the shop website work out the simplest form. The rest were sold in a High Street shop.

Work out the ratio of online sales to shop sales.

Give your answer in its simplest form.

Necklace sold in the shop = 240 - 180 = 60

180 : 60

to convert to simplest form, divide both numbers by 60

3 : 1

4 0
2 years ago
What is the 75th term of the arithmetic sequence -1, 5, 11
lana [24]

Answer:

75th term = 443

Step-by-step explanation:

a_{n}=a_{1}+d(n-1) \\a_{n}=-1+6(n-1) \\a_{75}=-1+6(75-1) \\a_{75}=-1+6(74)\\a_{75}=-1+444\\a_{75}=443 \\\\

7 0
3 years ago
What is the probability that a family with three children will have all girls?
labwork [276]

Answer:

B) 1/8

Step-by-step explanation:

each child born has 50/50 to be a boy or a girl, so, we determine a Bernoulli process where p=0.5, and we need 3 out of 3 successes.

the probability will then be:

(0.5)³=0.125=1/8

3 0
1 year ago
Read 2 more answers
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