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katrin [286]
3 years ago
14

I BET NO ONE KNOWS THIS QUESTION which of the following is a social norm?

Mathematics
1 answer:
Zepler [3.9K]3 years ago
6 0

Answer:

D. All the choices are correct

I think that's the right answer, if it isn't than my bad!!

You might be interested in
Which of the following illustrates the associative property of multiplication?
BaLLatris [955]

Answer:

9 × (1 × 4) = (9 × 1) × 4

Step-by-step explanation:

a \times (b \times c) = (a \times b) \times c \\

9 × (1 × 4) = (9 × 1) × 4

The associative property states that you can add or multiply regardless of how the numbers are grouped. By 'grouped' we mean 'how you use parenthesis'. In other words, if you are adding or multiplying it does not matter where you put the parenthesis. Add some parenthesis any where you like.

5 0
3 years ago
There are 2 seats on the left side on each row and 3 seats on the right side there are 90 seats on the right side of the plane h
arsen [322]

Answer:

Total number of seats on plane is 150 seats.

Step-by-step explanation:

Number of seats on left side = 2 in each row

Number of seats on right side = 3 in each row

Total number of seats on right side = 90

Number of rows = total number of seats on right side/ number of seats on right in each row

Number of rows = 90 / 3 = 30 rows

So, total number of seats on left side = 30 * 2 = 60 seats

Total number of seats = total seats on right side + total seats on left side

Total number of seat = 90+ 60 = 150 seats

Hence total number of seats on plane is 150 seats.

6 0
3 years ago
A taxi company is trying to decide whether to purchase brand A or brand B tires for its fleet of taxis. To estimate the differen
gavmur [86]

Answer:

Step-by-step explanation:

The question is incomplete. The complete question is:

A taxi company is trying to decide whether to purchase brand A or brand B tires for its fleet of taxis. To estimate the difference in the two brands, an experiment is conducted using 8 of each brand, assigned at random to the left and right rear wheels of 8 taxis. The tires are run until they wear out and the distances, in kilometers, are recorded in the accompanying data set. Find a 95% confidence interval for Hx - Hy. Assume that the differences of the distances are approximately normally distributed Data Set Let, Hx be the population mean for brand A and let Hy be the population mean for brand B. The confidence interval is -42- (Round to one decimal place as needed.) Taxi Brand A 37,700 46,800 36,500 40,600 43.600 31,300 37,600 43.800 Brand B 39,800 47,500 37.100 39,200 42,900 36,000 38,700 45,000

Solution:

For brand A,

Mean,x1 = (37700 + 46800 + 36500 + 40600 + 43600 + 31300 + 37600 + 43800)/8 = 39737.5

Standard deviation = √(summation(x - mean)²/n

Summation(x - mean)² = (37700 - 39737.5)^2 + (46800 - 39737.5)^2 + (36500 - 39737.5)^2 + (40600 - 39737.5)^2 + (43600 - 39737.5)^2 + (31300 - 39737.5)^2 + (37600 - 39737.5)^2 + (43800 - 39737.5)^2 = 172438750

Standard deviation = √(172438750/8

s1 = 4642.72

For brand B,

Mean,x2 = (39800 + 47500 + 37100 + 39200 + 42900 + 36000 + 38700 + 45000)/8 = 40775

Standard deviation = √(summation(x - mean)²/n

Summation(x - mean)² = (39800 - 40775)^2 + (47500 - 40775)^2 + (37100 - 40775)^2 + (39200 - 40775)^2 + (42900 - 40775)^2 + (36000 - 40775)^2 + (38700 - 40775)^2 + (45000 - 40775)^2 = 111635000

Standard deviation = √(111635000/8

s2 = 3735.56

The formula for determining the confidence interval for the difference of two population means is expressed as

Confidence interval = (x1 - x2) ± z√(s²/n1 + s2²/n2)

For a 95% confidence interval, we would determine the z score from the t distribution table because the number of samples are small

Degree of freedom =

(n1 - 1) + (n2 - 1) = (8 - 1) + (8 - 1) = 14

z = 2.145

x1 - x2 = 39737.5 - 40775 = -1037.5

z√(s1²/n1 + s2²/n2) = 2.145√(4642.72²/8 + 3735.56²/8)

= 4519.1

95% Confidence interval = - 1037.5 ± 4519.1

3 0
3 years ago
56 / w x for 100 what is the meaning of W?
DENIUS [597]

WidthAnswer:

Step-by-step explanation:

5 0
3 years ago
On an airplane, there are two seats on the left side in each row and three seats on the right
pogonyaev

Answer:

a)64

b)96

Step-by-step explanation:

For this we calculate the number of rows, 32, as 2+3 is 5, and 160/5 is 32. Then we know that there are 32 rows, and in each row are 2 left seats and 3 right seats, so we multiply 32 by both numbers for the answers.  

3 0
2 years ago
Read 2 more answers
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