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Sladkaya [172]
2 years ago
5

Use quadratic regression to find a

Mathematics
1 answer:
fredd [130]2 years ago
6 0

Answer:

1x² + 1x -3

Step-by-step explanation:

A quadratic regression is the process of finding the equation of the parabola that best fits a set of data. As a result, we get an equation of the form: y=ax^2+bx+c \text{ where } a\ne0 .

To compute manually the values of a, b and c is a rather complicated process using a technique known as least squares method.

However, we can use a scientific calculator to compute the three values and arrive at the quadratic equation

Using the points provided, the values are:

a = 1, b = 1, c = -3

The function is 1x² + 1x -3

Note that this is a best-fit function it does not necessarily pass through all 3 points but approximates. The attached graph shows that the function does indeed pass through 2 of the 3 points

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PLEASE HELP!!!!!! 100 POINTS!!!!!!!!
FrozenT [24]

Answer:

Answers are below

Step-by-step explanation:

Hour 0                 1 bacterium

Hour 1                  3 bacterium

Hour 2                 9 bacterium

Hour 3               27 bacterium

Hour 4                81 bacterium

Hour 5            243 bacterium

Hour 6            729 bacterium

After 24 hours, the number of the bacterium will reach 282,429,536,481.

B)  This table represents exponential growth because of the number of bacterium always being multiplied by 3.

C)  The reason that any number to the zero power is one is that any number to the zero power is just the product of no numbers at all, which is the multiplicative identity, 1.

D)  Y = 1 + 3 to the power of x

E)  The rule would change by having all of the numbers multiplied by 100 since there is 100 bacterium at Hour 0.

3 0
3 years ago
Which property applies only to addition and multiplication
True [87]
The property the applies only to addition and multiplication is the commutative property. It means that the numbers can be arranges in any order.  so for example you will get the same answer whether you do
5+6 or 6+5
6 0
3 years ago
Read 2 more answers
Quadrilateral ABCD is similar to quadrilateral EFGH. Find the measure of side FG.
dezoksy [38]
59

47 - 11 = 36
23 + 36 = 59

I hope this helps. Brainliest appreciated.
7 0
3 years ago
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Solve the equation to find the variable x
Gnom [1K]
Okay, you would need to distribute it.

It would be 3/4x - 3/4 = 10/8x - 20/8
4 0
3 years ago
PLS HELP!! this is due today pls help me thank u so much.
riadik2000 [5.3K]

Answer:

23.3

Step-by-step explanation:

Use phyth. Thm.

a^2 + b^2 = c^2

A and B are the side lengths, and C is the hypotenuse. The hypotenuse is across the right angle.

Since you only have one side length and the hypotenuse this what your equation will look like:

30^2 + x^2 = 38^2

900 + x^ = 1444

544 = x^2

x = roughly 23.3

8 0
3 years ago
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