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Svet_ta [14]
2 years ago
13

Work through these two problems 1)7-?=3.4567 and 2)6.9999-?=3.4567

Mathematics
1 answer:
koban [17]2 years ago
3 0

Answer:

Give students up to 1 minute to think about the first question and then ask them to ... The first two problems aim to help students

Step-by-step explanation:

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In a race between 18 people, how many ways can the top 5 finishers be arranged?
snow_lady [41]

Answer:

Step-by-step explanation:

This is permutation, since order matters.  The formula for us is

₁₈P₅ = \frac{18!}{(18-5)!} which simplifies to

₁₈P₅ = \frac{18*17*16*15*14*13!}{13!}

The factorial of 13 cancels out on the top and bottom leaving you with

₁₈P₅ = 18 × 17 × 16 × 15 × 14

which comes to 1,028,160 ways

Another way to look at it is:  the first 5 people of 18 finish and the others you don't care about.  Once the first place person is first, there are only 4 of the 18 left to finish in second place.  Then there are only 3 left to finish in third place, etc.  So if we use that reasoning, we don't even need to use the formula, we can just say

18 * 17 * 16 * 15 * 14 and those are the first 5 people of 18 to finish.

8 0
3 years ago
A study by the department of education of a certain
Zolol [24]

Answer:

17

Step-by-step explanation:

It’s right

4 0
3 years ago
PROBLEMA MATEMÁTICO:
Tema [17]

Answer:

Step-by-step explanation:

divide los números entre cuántos hermanos y cuántos euros

7 0
3 years ago
Guys help me solve this plzzz:(((;;(;;;((;
Maru [420]

Answer:

It should be 60 degrees

correct me if wrong but since it's supplementary, you subtract 155 - 35 then from 180 and you get 60

Im not 100% about this tho but like 75% sure

3 0
2 years ago
Shoni's initial balance in her checking account is 674.48
AlladinOne [14]
$1068.66

675.48 - 67.32 + 920 - 585 + 125.5 = $1068.66
7 0
3 years ago
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