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lys-0071 [83]
3 years ago
8

Х

Mathematics
1 answer:
adell [148]3 years ago
6 0

Answer:

Theirs no picture evidence

Step-by-step explanation:

Please explain your questions better

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The table shows the temperature of an amount of water set on a stove to boil, recorded every half minute. a 2-row table with 10
olga nikolaevna [1]

According to the line of best fit, the value of time when the temperature reach 100°c, the boiling point of water is 5.

<h3>What is linear regression?</h3>

Linear regression is a type of regression which is used to model the statement in which the growth or decay initially with constant rate, and then slow down with respect to time.

The table shows the temperature of an amount of water set on a stove to boil, recorded every half minute. a 2-row table with 10 columns.

  • Time (minutes X)                 0, 0.5,1.0, 1.5, 2.0,2.5,3.0, 3.5, 4,  4.5.
  • Temperature (° Celsius Y)  75, 79, 83, 86, 89, 91, 93,  94, 95, 95.5.

The sum of time is 22.5 and the sum of temperature value is 880.5. In this table,

  • The mean of time value, 2.25.
  • The mean of temperature value 88.05
  • Sum of squares 20.625
  • Sum of products 93.625

The regression equation for this data can be given as,

\hat y=4.53939 X+77.83636

Put the value of temperature (y) 100 in this equation.

100=4.53939 X+77.83636\\X=\dfrac{100-77.83636}{4.53939}\\X\approx 5

Hence, according to the line of best fit, the value of time when the temperature reach 100°c, the boiling point of water is 5.

Learn more about the regression here;

brainly.com/question/25226042

4 0
2 years ago
A(x) = x² +10x - 75<br> rewrite in factored form
USPshnik [31]

Step-by-step explanation:

A(x) = x² + 10x -75

= (x + 15)(x - 5)

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six candidates are running for two diffrent class offices. in how many ways can the offices be filled with these candidates​
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Answer:

3

Step-by-step explanation:

on edg2020

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Pls help solve for x
Tatiana [17]

Answer:145⁶°

Step-by-step explanation:

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Distributive property
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