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Olenka [21]
3 years ago
11

Marking brainliest

Mathematics
2 answers:
julia-pushkina [17]3 years ago
8 0

Answer:

Say I want a

Step-by-step explanation:

Ask what do you mean

weqwewe [10]3 years ago
3 0
I think he said that what kind of design of the pierce you want :)
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Identify the linear equation.
slamgirl [31]
I would go with D, it looks like it is the most linear out of the rest, Hope it helps:)
7 0
2 years ago
Use the discriminant to determine the number of solutions to the quadratic equation 3x^2+5x=-1
kari74 [83]

Answer:

Two real distinct solutions

Step-by-step explanation:

Hi there!

<u>Background of the Discriminant</u>

The discriminant b^2-4ac applies to quadratic equations when they are organised in standard form: ax^2+bx+c=0.

All quadratic equations can be solved with the quadratic formula: x = \frac{{ - b \pm \sqrt {b^2 - 4ac} }}{{2a}}}.

When b^2-4ac is positive, it is possible to take its square root and end up with two real, distinct values of x.

When it is zero, we won't be taking the square root at all and we will end up with two real solutions that are equal, or just one solution.

When it is negative, it is impossible to take the square root and we will end up with two non-real solutions.

<u>Solving the Problem</u>

<u />3x^2+5x=-1<u />

We're given the above equation. It hasn't been organised completely in ax^2+bx+c=0, but we can change that by adding 1 to both sides to make the right side equal to 0:

3x^2+5x+1=0<u />

Now that we can identify the values of a, b and c, we can plug them into the discriminant:

D=b^2-4ac\\D=(5)^2-4(3)(1)\\D=25-4(3)(1)\\D=25-12\\D=13

Therefore, because the discriminant is positive, the equation has two real, distinct solutions.

I hope this helps!

4 0
2 years ago
Consider that the roots of a cubic equation with integral coefficients are 1, −2, and 3.
Iteru [2.4K]

Answer:

The answer is option A) X + 2

Step-by-step explanation:

Any polynomial of order n can be expressed in terms of their roots in factors of the form

(x-a)(x-b)(x-c)(x-d)....... = 0

Where a,b,c,d,... are the roots of the polynomial

In the example shown

(x+2) = (x-(-2))

And -2 happens to be the root of the polynomial in question

3 0
2 years ago
Read 2 more answers
HELP I NEED HELP ASAP
lilavasa [31]

Answer:

I think it its

Step-by-step explanation:

C if its wrong sorry

8 0
3 years ago
Need help solving these 3 equations, please help.
pantera1 [17]
1.) r=-1/3
2.) x=-33/29
3.) x=-4/5 x=2/5
3 0
3 years ago
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