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myrzilka [38]
3 years ago
12

The table shows the number of practice problems completed in 30 minutes in three samples of 10 randomly selected math students.

Mathematics
2 answers:
Ahat [919]3 years ago
5 0
Answer A step by step explanation as it is set that has been equaling resendted it is ok to predict
scoundrel [369]3 years ago
4 0

Answer: A

Step-by-step explanation: As it is a data set that has been equally represented, it is ok to predict.

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How to convert it into seconds?
lys-0071 [83]

Answer:

What are we supposed to covert?

Step-by-step explanation:

4 0
3 years ago
a swim meet has 13 contestants . the first heat has 6 simmers . how many different ways can the contestants be arranged in the f
yawa3891 [41]
Answer: 1, 235, 520 different arrangements
Explanation: Since we want to arrange them, we care about the order in which they come in.
Let's firstly think about it in a diagrammatic way before diving into the permutations side of things.

We have 13 swimmers, let's name them from 1 to 13. Now, we want to arrange six of them in a line (hypothetically).

Thus, we can arrange the first six people:

1 2 3 4 5 6
1 2 3 4 6 5
1 2 3 6 5 4
1 2 3 6 4 5
...

In fact, we have 6! ways in arranging six objects into six places, which is 720 different ways.

Now, let's think about it in a bigger spectrum. If we have 13 people and we want to arrange them in 13 blocks, we would have 13! ways in arranging them:

Different permutations:
Ways in arranging 13 people into 13 different lanes is given by: 13!
Now, we want to restrict that into 6 blocks, so we can only have 6 people in it
So, we would have (13 - 6)! ways in arranging them into 6 blocks.

So, our final number of arrangements is: \frac{13!}{(13 - 6)!} = 1 235 520 ways.

This is also the formula for the Permutation function represented by: ^{n}P_r, where n is the number of objects (13) and r is the number of positions (6). 
5 0
3 years ago
I need this please help me
alexandr402 [8]
Top one is “equal to”
Middle one is “longer than”
Lowest one is “will”
8 0
3 years ago
The expression below in standard form.<br> 3h - 2(1 + 4h)
fgiga [73]

Answer:

I assume by standard you mean simplified. Anyways, the answer is -5h-2.

Step-by-step explanation:

3h-2(1+4h)

Solve inside the parenthesis.

3h-2+(-8h)

Simplify.

-5h-2

4 0
4 years ago
Read 2 more answers
Janelle earned 90% on a test and got 63 points. How many total points were possible on the test? Draw a diagram to organize your
Slav-nsk [51]

Answer:

63 / 0.9 = 70


5 0
3 years ago
Read 2 more answers
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