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hram777 [196]
3 years ago
14

3 x. 3x²+x-3=0 Find the zeros

Mathematics
1 answer:
Tanya [424]3 years ago
3 0

Answer:

The zeroes of this polynomial are x_{1} \approx 0.847 and x_{2} \approx -1.180.

Step-by-step explanation:

Let 3\cdot x^{2}+x - 3 = 0, the quickest and most efficient approach to find the zeroes of this second order polynomial is by Quadratic Formula. For all a\cdot x^{2}+b\cdot x + c = 0, roots are determined by:

x_{1,2} = \frac{-b\pm \sqrt{b^{2}-4\cdot a\cdot c}}{2\cdot a} (1)

Where a, b, c are coefficients of the polynomial.

If we know that a = 3, b = 1 and c = -3, then roots of the polynomial are, respectively:

x_{1,2} = \frac{-1\pm\sqrt{1^{2}-4\cdot (3)\cdot (-3)}}{2\cdot (3)}

x_{1,2} =\frac{-1\pm \sqrt{37}}{6}

The zeroes of this polynomial are x_{1} \approx 0.847 and x_{2} \approx -1.180.

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Find the value of pq - r/4 when p= -8 and q= -3 and r= 68
andrey2020 [161]

Answer:

7

Step-by-step explanation:

pq - r/4

(-8)(-3) - 68/4

-8 x -3 = 24 (2 negatives equal a positive)

24 - 68/4

68/4 = 17

24-17 = 7

6 0
3 years ago
FIRST ANSWER GETS BRAINLIEST
Anarel [89]

Answer:

4/15

Step-by-step explanation:

You would do it as follows

I-8/15I reduce the fraction by 2

I-4/25I the absolute fraction is always positive

So the solution is

4/25

Alternative forms are:

0.16 or (2/5)^2 (Just incase)

5 0
3 years ago
Read 2 more answers
Graph linear system and estimate the solution y=5x + 2 y=3x
NeTakaya
Y = 5x + 2
y = 3x

  5x + 2 = 3x
- 5x        - 5x
          2 = -2x
         -2    - 2
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y = 3(-1)
y = -3
(x, y) = (-1, -3)

3 0
3 years ago
Using the system below, find the maximum value using the given f(x,y) function
natulia [17]

Answer:

maxuin 10

Step-by-step explanation:

5 0
3 years ago
you have a part time job. you work 3 hours on friday and 6 hours on saturday. you also receive an allowance of $20 per a week. y
klemol [59]
$92/week is the amount of money you gained from work combined with your $20/week allowance money. 

92 - 20 = 72 (total money made per week subtract allowance money leaves money made from work)
Thus, you make $72/week at your part time job.

You work a total of 9 hours. (3hrs on Fri & 6hrs on Sat added together)
72/9 = 8 (total amount of money made divided by the 9 hrs you worked for - gives amount of money you make per hour)
Thus, you make $8/hr at your part time job.


8 0
3 years ago
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