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Marina CMI [18]
2 years ago
11

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Mathematics
1 answer:
Sedaia [141]2 years ago
6 0

Did you know the moon has moonquakes.

bruh

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What is the absolute value of the difference in the x-values between (1,7) and (3,11)​
Marysya12 [62]

Answer:

2.

Step-by-step explanation:

The first numbers in the ordered pairs are the x values;

Difference = 1 - 3 = -1

The absolute value is 2.

7 0
2 years ago
Dudley is biking. He wants to cover 40 miles. If he travels 30 miles every 2 ours, what is the equation of a line that models y,
fgiga [73]

Answer:

y=40-15x

Step-by-step explanation:

Let x represent the number of hours.

We have been given that Dudley travels 30 miles every 2 hours, so distance covered in each hour by Dudley would be:

.

Since Dudley travels 15 km per hour, so distance covered in x hours would be 15x.

We have been given that Dudley wants to cover 40 miles. So we can represent our given information in an equation as:

, where, y represents number of miles he has left to travel, after biking x hours.

3 0
3 years ago
A shoe store uses a 50 percent markup for all of the shoes it sells. What should be the selling price of a pair of shoes that ha
Margarita [4]

Answer:

85.5

Step-by-step explanation:

57 + 57/2 = 57 + 28.5 = 85.5

5 0
3 years ago
Match each concept with its key characteristic.
Crank

1. It is the subset of a group  - Group sample.

2. It equally favors all members of a group sample   - Random sample.

3. It collects data on members of a group  -  Survey.

4. It does not equally favor all members of a group - Biased sample.

5. It includes all members of a group   -  Population.

6. It analyzes data collected from a group - Mean.


I have matched all concepts in accordance with statistical use, hope it helps.


6 0
3 years ago
A set of cards contains cards numbered 1 – 8. Mrs. Jacob’s class is conducting an experiment in which a card is drawn from the p
Alchen [17]

Answer:

The best prediction for the number of times a 4 will be drawn from the pile is:

                       125

Step-by-step explanation:

It is given that:

A set of cards contains cards numbered 1 – 8.

So, the theoretical probability that 4 comes up is:

Ratio of Number of favorable outcome( outcome of 4) to the total umber outcome(i.e. 8 )

Hence, Theoretical Probability that 4 is drawn=1/8

Now, out of 1000 trials the best prediction of number of times 4 is drawn is:

(The probability of drawing 4)×(Number of experiments or trials)  

=(1/8)×1000

=125

7 0
3 years ago
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