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tankabanditka [31]
3 years ago
9

0=x^2-4x+3 how many roots does this equation have

Mathematics
1 answer:
mars1129 [50]3 years ago
5 0

Answer:

No complex roots; 3 real roots

Step-by-step explanation:

If a third order polynomial has any complex roots, then as a rule it has 1 real root and 2 complex roots.  In this particular case, the polynomial has three real roots, as can be determined by graphing the function.  The graph crosses the x-axis in 3 places.

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I love you pls help me im hopeless
Rina8888 [55]

Answer:

46°

Step-by-step explanation:

7 0
4 years ago
In a school auditorium, the number of chairs in a row is the same as the number of rows of chairs. There are 7033 students in th
mafiozo [28]

Same number of rows to chairs in a row would form a square.

Use the total number of students as the area

Find the number or rows by taking the square root of student:

The square root of 7033 is 83.86

Round up to 84

Total seats would be rows x seats per row:

84 x 84 = 7,056 total seats

7056 seats - 7033 students = 23 empty seats

3 0
3 years ago
The perimeter of a triangle is 6x. One side is x+3 and another side is 2x+4. What is the length of the 3rd side?
maxonik [38]
Let y = the length of the 3rd side
x+3 + 2x+4 + y = 6x
x + 2x + 3 + 4 + y = 6x
3x + 7 +y = 6x
7 + y = 3x
y = 3x - 7
The length of the third side in terms of x is 3x-7
6 0
3 years ago
Which equation represents a parabola that has a focus of (0 0) and a directrix of y = 2
mel-nik [20]

ANSWER

x ^{2}  =  - 4(y - 1).

EXPLANATION

Since the parabola has the (0, 0) and the directrix at y=2.

The equation is of the form

{(x - h)}^{2}  =  - 4p(y - k)

where (h,k) is the vertex.

The vertex is half way between the directrix and the focus.

The vertex will be at (0,1)

and is the distance from the vertex to the focus which is 1.

{(x - 0)}^{2}  =  - 4(1)(y - 1)

x ^{2}  =  - 4(y - 1)

7 0
3 years ago
Solve equation:<br> -3|d-5|=-6
gulaghasi [49]

Answer:

d = 7, 3

Step-by-step explanation:

First, you need to isolate the absolute value

-3|d - 5| = -6

divide both sides by -3:

|d - 5| = 2

break into 2 equations:

d - 5 = 2, d - 5 = -2

solve both equations and collect solutions:

d = 5 + 2, d = 5 - 2

d = 7, 3

6 0
3 years ago
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