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3 years ago

Consider the function f(x) = 3.x2 + 7x + 2. what is the value of the discriminat?

Mathematics

1 answer:

Vika [28.1K]3 years ago

3 0

Answer:

The Discriminant is 25

Step-by-step explanation:

For this case, the discriminant will be given by

b ^ 2 - 4 * a * c

Where

b = 7

a = 3

c = 2

substituting

b ^ 2 - 4 * a * c = (7) ^ 2 - 4 * (3) * (2) = 25

Therefore the value of the discriminant is 25.

How many x-intercepts does this function have?

It has two intercepts with the x axis and can be found by equaling the function to zero. That is to say,

3x2 + 7x + 2 = 0

The results will be the interceptions with x.

What are the number of zeros for this function?

The number of zeros for this function is

two real number solutions

Because it is a quadratic function.

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Convert from radians to degrees

Natali [406]

Answer:

The answer is

Step-by-step explanation:

In order to convert a value from radians to degrees we multiply the value by $\frac{180}{\pi}$

So from the question the value to be converted into degrees is

<u>Converting into degrees we have</u>

<h3> $\frac{3\pi}{4} \times \frac{180}{\pi}$ </h3>

<u>Reduce the expression with π</u>

That's

<h3> $\frac{3 \times 180}{ 4} = \frac{540}{4}$ </h3>

We have the final answer as

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4 years ago

If the third term in an arithmetic sequence is 7 and the common difference is -5, what is the value of the fourth term?

kozerog [31]

Answer: 2

Step-by-step explanation:

I hope this helps!!!

8 0

3 years ago

Read 2 more answers

A rectangular building for a gym is three times as long as it is wide. Just inside the walls of the building, there is a 6ft rec

lisov135 [29]

The equation 3x² - 48x + 6856 represents the area of the gym and track together in terms of width.

<h3>What is the area of the rectangle?</h3>

It is defined as the area occupied by the rectangle in two-dimensional planner geometry.

The area of a rectangle can be calculated using the following formula:

Rectangle area = length x width

We have:

A rectangular building for a gym is three times as long as it is wide. Just inside the walls of the building, there is a 6ft rectangular track along the walls of the gym and has an area of 7000ft²

Let x be the width of the rectangle.

As the area of track along the walls of the gym is 7000ft²

(x - 12)(3x - 12) = 7000

After simplifying:

3x² - 48x + 6856 = 0

Thus, the equation 3x² - 48x + 6856 represents the area of the gym and track together in terms of width.

Learn more about the rectangle here:

brainly.com/question/15019502

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3 0

2 years ago

In order to test for the significance of a regression model involving 3 independent variables and 47 observations, the numerator

matrenka [14]

Answer:

The correct option is C

Step-by-step explanation:

From the question we are told that

The number of independent variables is $n = 3$

The number of observation is $z = 47$

Since n is are independent variables then their degree of freedom is 3

The denominator(i.e z) degrees of freedom is evaluated as

$Df(z) = z - (n +1)$

$Df(z) = 47 - (3 +1)$

$Df(z) = 43$

So for the numerator (n) the degree of freedom is Df(n) = 3

So for the denominator(i.e z) the degree of freedom is Df(z) = 43

4 0

4 years ago

PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!

ollegr [7]

Answer: For 1 it is A - f(x)=(x-2)(x+4) and for 2 it is C - y = 0.5x^2 + 1.5x − 5

Step-by-step explanation:

Just use Desmos

7 0

1 year ago