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tankabanditka [31]

4 years ago

9

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

1 answer:

mars1129 [50]4 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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14. Translate the following words into an equation and then solve.

Mazyrski [523]

Answer:BRUH

Step-by-step explanation:

BRUH

8 0

4 years ago

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What is the solution to this question?<br><br> 5x + 3 = 2x - 6<br><br> X= ?

astraxan [27]

Answer:

Step-by-step explanation:

5x + 3 = 2x - 6

3x + 3 = -6

3x = -9

x = -3

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Which statement is true? All squares are rectangles. All quadrilaterals are rectangles. All parallelograms are rectangles. All r

azamat

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all squares are rectangles is true

Step-by-step explanation:

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3 years ago

A tourist calculated that if he walks to the railroad station with a speed of 4 mph, he’ll miss the train by half an hour, but

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3 years ago

2) Brian purchased pens for 75 cents each and pencils for 40 cents each he bought total of 22 writing utensils for $11.95. How m

d1i1m1o1n [39]

Answer:

13 pencils.

Step-by-step explanation:

Let x be the pens and y be the pencils

Given:

Brian purchased pens for 75 cents each and pencils for 40 cents each he bought total of 22 writing utensils for $11.95.

Total pens and pencils is 22

So, $x+y=22$ ----------------(1)

And he bought all utensils for $11.95. and each pen for 75 cents and pencils for 40 cents.

$0.75x+0.40y=11.95$ ------------(2)

solve equation 1 and equation 2 for x and y.

From equation 1.

$x+y=22$

$y=22-x$ ----------------(3)

put y value in equation 2.

$0.75x+0.4(22-x)=11.95$

$0.75x+0.4\times 22-0.4x=11.95$

$0.75x+8.8-0.4x=11.95$

$0.75x-0.4x=11.95-8.8$

$0.35x=3.15$

$x=\frac{3.15}{0.35}$

$x=9$

Now substitute x value in equation 3.

$y=22-9$

$y=13$

So, he buy 13 pencils.

5 0

3 years ago