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Agata [3.3K]
2 years ago
11

Математика срочно пожалуйста​ ​

Mathematics
1 answer:
azamat2 years ago
7 0

Step-by-step explanation:

2,3÷2,5=23÷25=0,92

0,3÷0,8=3÷8=0,375

1,7÷025=170÷25=6,8

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What is the rule for the following sequence: 2, 9, 21, 65
Helga [31]

There is no common ratio or common difference. The first three terms increases more slowly than a cubic, but the last three increase more quickly than the cube of n. The pattern is not obvious to me. When the sequence is cast in recursive terms, you get

... a[n] = (48/13)a[n-2] + (59/39)a[n-1] . . . . a[1] = 2, a[2] = 9

The next term using this rule is 174 34/39, not an integer.

The coefficients p and q for a[n-2] and a[n-1] can be found from

2p+9q=21\\9p+21q=65

_____

Any sequence of 4 numbers can be matched by a polynomial of degree 3 or less. Here, a calculator's polynomial regression function tells us the rule could be

... a[n] = 4.5n³ -24.5n² +49n -27

Using this rule, the next two terms are 168 and 357.

5 0
3 years ago
A basketball coach keeps track of the points scored per game for all of her players. She gives a trophy to to the player with th
Andrei [34K]

Answer:

She wants to take unusually of the good and bad games into account

Step-by-step explanation:

Given that a basketball coach keeps track of the points scored per game for all of her players.  A trophy is given to the player with the highest mean score at the end of the season.

Mean vs median:

Mean is the arithmetic average of all the entries while median is the middle entry after arranging in ascending order.

Median is not affected by extreme items but mean is very much affected by unusually high or low scores.

Here since the trophy is decided to be given to the highest mean score it is obvious that

She wants to take unusually of the good and bad games into account

Because of this only, mean is taken instead of median.

3 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!<br> 8−(−3)=
sattari [20]

Answer:

11

Step-by-step explanation:

<em>When you subtract a negative number, you add them.</em>

<em>Example:  5 - (-5) = 5 + 5 = 10</em>

<em>Example:  1 - (-14) = 1 + 14 = 15</em>

<u>Step 1:  Subtract</u>

8 - (-3)

8 + 3

11

Answer:  11

6 0
3 years ago
Read 2 more answers
Round the product of 0.24 and 0.26 to the nearest hundredth. What is the answer?
Andreyy89
0.06 because the product is 0.0624
3 0
3 years ago
Please answer due today (one question) Algebra and WILL GIVE BRAINLEST!!!
chubhunter [2.5K]

180(6 - 2) = 720

4x + 180 = 720

4x = 630

x = 157.5

S = 720

X = 157.5

5 0
2 years ago
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