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masha68 [24]
3 years ago
11

Which of the following is a major difference between a

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
5 0

Answer:

What's the key difference between the t- and z-distributions? The standard normal or z-distribution assumes that you know the population standard deviation. The t-distribution is based on the sample standard deviation.

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A train travels at a constant speed of 35 feet per second. How many minutes will it take the train to travel exactly 70 miles? (
olga_2 [115]

176 minutes,

70x5,280= 369,600 divide by 35= 10,560 divide by 60=176

3 0
4 years ago
Read 2 more answers
Hi can someone help me with this I will thank u so much and give u stars and a thank u
AnnZ [28]

Answer:

i think it is .64

Step-by-step explanation:

4 0
3 years ago
Miguel quiere entrenar para la carrera solidaria de verano en uno de los dos parques que tiene cerca de casa. Su plan es correr
kondor19780726 [428]

Answer:

  • <em>The square park is more convenient.</em>

Explanation:

The translation of the question is:

<em>Miguel wants to train for the summer solidarity race in one of the two parks that he has close to home. His plan is to run about 10 km each day and he wants to do an exact number of laps around the park to always start and end at the entrance. Since he has not quite decided between the square and the rectangular park, he decides to do some calculations to see which one suits him best.</em>

<em>Square park: 423 meters each side</em>

<em>Rectangular park: 673 meters measures the base and 218 meters the height</em>

<em />

<h2>Solution</h2>

<u />

<u>1. Calculate the perimeter of the square park</u>

The perimeter of a square is the sum of the four side lengths. Since they are equal it is:

  • Perimeter = 4 × side lenght
  • Perimeter = 4× 423m = 1,692 m

<u />

<u>2. Calculate how many times 1,692m is in 10 km</u>

10 km is 10,000 m. Then, divide 10,000 by 1,692 m:

  • Number of laps = 10,000m / 1,692m ≈ 5.91 laps

<u>3. Calculate the perimeter of the rectangular park</u>

  • Perimeter = 2×base + 2×height
  • Perimeter = 2×673m + 2×218m = 1,782m

<u>4. Calculate how many times 1,782 is in 10km</u>

  • Number of laps = 10,000m / 1,782m ≈ 5.61 laps

Then, since the number 5.91 is closer to an integer number than 5.61, you conclude that the square park is more conventient, because by running 6 laps around the square park the number of kilometers run will be closer to 10 km than with any number of complete laps in the rectangular park.

3 0
3 years ago
Easy question for easy points.
maw [93]

Answer:

Multiply 10 and 2 each by 4 and .07. Then add.

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
What is the correct answer
Nesterboy [21]

Answer:

B. As x approaches negative infinity f(x) approaches positive infinity

Step-by-step explanation:

The given absolute value function is f(x)=3|x-7|-7.

This function has its vertex at (7,-7) and opens upwards.

That means it has a V-shape.

As the values of x grows bigger and bigger negatively or positively, the function f(x) approaches positive infinity.

In other words;

As x approaches positive infinity f(x) approaches positive infinity

As x approaches negative infinity f(x) approaches positive infinity

The correct choice is B.

5 0
4 years ago
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