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Mars2501 [29]
2 years ago
11

(-3x^2+4x-2)/(-3x+19)

Mathematics
2 answers:
prohojiy [21]2 years ago
7 0
\left[x _{1}\right] = \left[ \frac{2}{3}+\left( \frac{-1}{3}\,i \right) \,\sqrt{2}\right][x​1​​]=[​3​​2​​+(​3​​−1​​i)√​2​​​] totally answer
goldenfox [79]2 years ago
7 0

solve for x: by completing the square:

(3 x^2 - 4 x + 2)/(3 x - 19) = 0

Multiply both sides by 3 x - 19:

3 x^2 - 4 x + 2 = 0

Divide both sides by 3:

x^2 - (4 x)/3 + 2/3 = 0

Subtract 2/3 from both sides:

x^2 - (4 x)/3 = -2/3

Add 4/9 to both sides:

x^2 - (4 x)/3 + 4/9 = -2/9

Write the left hand side as a square:

(x - 2/3)^2 = -2/9

Take the square root of both sides:

x - 2/3 = (i sqrt(2))/3 or x - 2/3 = -(i sqrt(2))/3

Add 2/3 to both sides:

x = 2/3 + (i sqrt(2))/3 or x - 2/3 = -(i sqrt(2))/3

Add 2/3 to both sides:

Answer: x = 2/3 + (i sqrt(2))/3 or x = 2/3 - (i sqrt(2))/3

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Pls answer the question important
Sladkaya [172]

Step-by-step explanation:

no they are not parallel

4 0
3 years ago
Read 2 more answers
State whether each situation has independent or paired​ (dependent) samples. a. A researcher wants to compare the hand–eye coord
Alex73 [517]

Answer:

a. A researcher wants to compare the hand–eye coordination of men and women. She finds a random sample of 100 men and 100 ​women, and measures their hand–eye coordination = paired samples

b. A researcher wants to know whether professors with tenure have fewer office hours than professors without tenure. She observes the number of office hours for professors with and without tenure. =  independent samples

Explanation:

Paired-samples t tests compare scores on two different variables but for the same group of cases; independent-samples t tests compare scores on the same variable but for two different groups of cases.

6 0
3 years ago
$4,85 Incorrect Question 6 0/10 pts A corporation issues 25-year $1,000 zero-coupon bonds. Calculate the price you must pay for
SIZIF [17.4K]

Answer:

  $52.62

Step-by-step explanation:

The present value of an investment with a future value of $1000 at an interest rate of 12.5% compounded annually for 25 years is ...

  $1000 × (1 + 0.125)^(-25) = $52.62

6 0
3 years ago
A cable is 30 meters long. How long is the cable in decimeters? Be sure to include the correct unit in your answer.
vekshin1
One metre=10 decimetres.
Therefore 30 metres = 30*10=300 decimetres.
5 0
3 years ago
Find the exact solution of the following quadratic equation by using the Quadratic Formula. x^2-9x=36
natita [175]

Answer:

x = 12 or x = -3

Step-by-step explanation:

Solve for x over the real numbers:

x^2 - 9 x = 36

Subtract 36 from both sides:

x^2 - 9 x - 36 = 0

x = (9 ± sqrt((-9)^2 - 4 (-36)))/2 = (9 ± sqrt(81 + 144))/2 = (9 ± sqrt(225))/2:

x = (9 + sqrt(225))/2 or x = (9 - sqrt(225))/2

sqrt(225) = sqrt(9×25) = sqrt(3^2×5^2) = 3×5 = 15:

x = (9 + 15)/2 or x = (9 - 15)/2

(9 + 15)/2 = 24/2 = 12:

x = 12 or x = (9 - 15)/2

(9 - 15)/2 = -6/2 = -3:

Answer:  x = 12 or x = -3

4 0
3 years ago
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