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zepelin [54]
3 years ago
15

Ten sixth-grade students in five different countries—United States, Australia, South Africa, Canada, and New Zealand—were asked

about their travel times to school. Their responses were organized into five data sets. The mean and MAD of each data set are shown in the table.
1. Which group of students has the greatest variability in their travel times?
2. The mean of the data set for New Zealand is close to that of Canada. What does this tell us about the travel times of students in those two data sets?
3. The MAD of the data set for New Zealand is quite different than that of Canada. What does this tell us about the travel times of students in those two data sets?

Mean MAD
United States: 9 4.2
Australia: 18.1 7.9
South Africa: 23.5 16.2
Canada: 11 8
New Zealand: 12.3 5.5
Mathematics
1 answer:
Crank3 years ago
6 0

Answer:

12.3.5.5 or  New Zealand is a mean. or MAD means not now what you want to say,

Step-by-step explanation:

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Pythagorean
nata0808 [166]

Answer:

5√3 ft

Step-by-step explanation:

If the ladder is 10ft tall, then that represents the hypotenuse. If the foot of our ladder is 5ft away from the wall, that is a side length that we know. Using the Pythagorean Theorem, a²+b²=c², where a and b are side lengths of a right triangle, and c is the hypotenuse, we can solve for the missing side length:

a²+b²=c²

(5)²+b²=(10)²

25+b²=100

b²=75

b=√75

b=5√3

So the ladder will reach a height of 5√3 ft.

7 0
3 years ago
Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)
Phoenix [80]

Answer:

X=2 F=6 This works for both equations. Hope this helps!

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
HELP ME points a b and c lie on a line where ab=10 and ac=36. What are the two possible values of bc
Naya [18.7K]

Answer: 26 and 46, perhaps

Step-by-step explanation: The question does not state if point b is between a and c. Yes, it stands to reason that b is between a and c, but this is math. Since the question asks for TWO possible answers, it leads me to believe that b could also be prior to point a. Then we have two possible scenarios:

The logical one: A - - - B - - - C BC = (36 - 10) = 26

and this: B - - - A - - - C BC = (36 + 10) = 46

4 0
3 years ago
mr. dean has an even number of cats and an odd number of dogs. which of these choices could tell about his pets ? 6 cats and 3 d
valina [46]

Even numbers can be divided evenly into groups of two. The number four can be divided into two groups of two.

Odd numbers can NOT be divided evenly into groups of two. The number five can be divided into two groups of two and one group of one.

Even numbers always end with a digit of 0, 2, 4, 6 or 8. 
2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 are even numbers.

Odd numbers always end with a digit of 1, 3, 5, 7, or 9. 
1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31 are odd numbers. 

The correct answer is 6 cats and 3 dogs.

4 0
3 years ago
Which company’s tower holds the most water?
GuDViN [60]

Answer: First Option

Step-by-step explanation:

The formula to calculate the volume of a cylinder is:

V = \pi(\frac{d}{2})^2*h

Where d is the diameter of the cylinder and h is the height.

Notice that the term d is squared. This means that to increase the volume of a cylinder it is more efficient to increase its diameter as well. Therefore, look for the cylinder with the largest diameter among the options.

The first cylinder is 90 ft in diameter and 40 ft in height and its volume is

V = \pi(\frac{90}{2})^2*40

V=254469\ ft^3

You can verify that it is the tank that has the highest volume

8 0
3 years ago
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