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irakobra [83]
2 years ago
7

I got a maths equation which i don't really get how to work out, the question is : solve 4x^2+x-3=0

Mathematics
1 answer:
Maru [420]2 years ago
6 0

The solutions for the given equation 4x^2+x-3=0 are x = -1 and x = 3/4. Using the quadratic formula, the solutions for the given equation are calculated.

<h3>What is the quadratic formula?</h3>

The formula which is used to calculate the roots(solutions) of the quadratic equation in the form ax^2+bx+c=0 is

x = [- b ± \sqrt{b^2-4ac}]/2a

<h3>Calculation:</h3>

The given equation is 4x^2+x-3=0

In comparison with the standard form of quadratic equation ax^2+bx+c=0,

we get, a = 4, b = 1 and c = -3

So, solving the given equation using the quadratic formula,

x = [- b ± \sqrt{b^2-4ac}]/2a

  = [- 1 ± \sqrt{1-4(4)(-3)}]/2(4)

  = [-1 ± \sqrt{49}]/8

  = (-1 ± 7)/8

Thus, x =  (-1 + 7)/8 = 3/4 and x = (-1-7)/8 = -8/8 = -1

Therefore, the solutions of the given equation are x = -1 and x = 3/4.

Learn more about solving quadratic equations here:

brainly.com/question/1214333

#SPJ4

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Please help!<br> Write down the correct type of angle for angles A to E.
mel-nik [20]

Answer:

Angle A- Obtuse angle

Angle B- Right angle

Angle C- Reflex angle

Angle D- Reflex angle

Angle E- Acute angle

4 0
3 years ago
Polygon D is a scaled copy of polygon C using a scale factors of 6
Vladimir79 [104]

Answer: The area of the Polygon D is 36 times larger than the area of the Polygon C.

Step-by-step explanation:

<h3> The complete exercise is: "Polygon D is a scaled copy of Polygon C using a scale factor of 6. How many times larger is the area of Polygon D than the area Polygon C"?</h3>

 In order to solve this problem it is important to analize the information provided in the exercise.

You know that the Polygon D was obtained by multiplying the lengths of the Polygon C by the scale factor of 6.

Then, you can identify that the Length scale factor used is:

Length\ scale\ factor=k=6

Now you have to find the Area scale factor.

Knowing that the Length scale factos is 6, you can say that the Area scale factor is:

Area \ scale\ factor=k^2=6^2

Finally, evaluating, you get that this is:

Area \ scale\ factor=36

Therefore, knowing the Area scale factor, you can determine that the area of the Polygon D is 36 times larger than the area of the Polygon C.

8 0
3 years ago
HELP ASAP!!!!!!!!!!!!!
Mandarinka [93]
It will be 69 degrees.

(x-1)+x+43=180
2x+42=180
2x=138
x=69
4 0
3 years ago
I need help please (;´༎ຶٹ༎ຶ`)
spayn [35]
The dude on top of me is correct
7 0
3 years ago
5491 apples were harvested from one side of the McMillan farm. they harvested 512 from the other side of the farm.about how many
Andrews [41]

Answer:

6003

Step-by-step explanation:

Given : They harvested 5491 apples from one side of the McMillan farm.

             They harvested 512 from the other side of the farm.

To Find : The total number of apples harvested at the McMillan.

Solution :

Since we know that

Number of apples harvested from one side of the McMillan farm = 5491

Number of apples harvested from other side of the McMillan farm = 512

Now we are supposed to calculate the total number of apples

So, we need to sum the number of apples of both the sides .

⇒5491+512

⇒6003

Hence , the number of apples harvested  at the McMillan is 6003

3 0
3 years ago
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