PLEASE ANSWER QUICK GIVING XTRA POINTS

Mathematics

1 answer:

Crank3 years ago

4 0

Answer: 7/26

Step-by-step explanation:

7/13 x 6/12 = 7/26

hope this helps :)

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What is 2x squared plus 5x - 9

Harlamova29_29 [7]

It would be 7x-9 because 2x squared would be 4x, and you can only simplify two numbers if they have the same variable after it. So, all you can do is simplify this equation down to 7x-9.

7 0

4 years ago

Write 585% as a decimal and as a fraction.

Pepsi [2]

Let's start by turning it into a decimal.
- to turn any percent into a decimal you move the decimal point two places to the left.
Decimal= 5.85

To turn into fraction you know 5 is the whole number and you have 85 hundredths. Just put that in fraction form.
5 and 85/100
Now simplify by dividing both by 5
Answer is
5 and 17/20

3 0

3 years ago

Use quadratic regression to find a

fredd [130]

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