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3 years ago

If the area of a rectangle is represented by x^2+ 27x- 124, then which expression

Mathematics

2 answers:

s344n2d4d5 [400]3 years ago

7 0

The answer is B x+31

Reika [66]3 years ago

3 0

Answer:

B x+31

Step-by-step explanation:

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With full explanation from the internet like before 3x2-6x+5=0

Elodia [21]

Answer:

$\sf x=1+i\sqrt{\dfrac{2}{3}} \ \quad and \quad \:x=1-i\sqrt{\dfrac{2}{3}}$

Explanation:

Given Expression:

3x² - 6x + 5 = 0

Use the Quadratic Formula:

$\sf x = \dfrac{ -b \pm \sqrt{b^2 - 4ac}}{2a} \ \ when \ \ ax^2 + bx + c = 0$

insert coefficients

$\Longrightarrow \sf x = \dfrac{-\left(-6\right)\pm \sqrt{\left(-6\right)^2-4\cdot \:3\cdot \:5}}{2\cdot \:3}$

$\Longrightarrow \sf x = \dfrac{\left6\right\pm \sqrt{-24} }{6}$

$\Longrightarrow \sf x = \dfrac{\left6\right\pm 2\sqrt{6}i}{6}$

$\Longrightarrow \sf x =1 \pm i\dfrac{\sqrt{6} }{3}$

$\Longrightarrow \sf x=1+i\sqrt{\dfrac{2}{3}}, \quad 1-i\sqrt{\dfrac{2}{3}}$

6 0

2 years ago

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The box plot was created by using which pieces of data? 1 50 75 100 125

VikaD [51]

Answer:

50,75,and 100 there's supposed to be a 20 too but it's not there but oh well

4 0

3 years ago

{(-2, 6), (-5, -1), (3, 7), (-5, 0)} Domain: Range: Function?

just olya [345]

{(-2, 6), (-5, -1), (3, 7), (-5, 0)}

Domain: The domain is all the x-values (-2, -5, 3, -5)

Range: The range is all the y-values (6, -1, 7, 0)

Function: It's not a function because of the x-value -5 is repeating.

6 0

3 years ago

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Can some one help me solve these 3 questions?

worty [1.4K]

7. A
8. Is the 1st picture
9.is the second picture

5 0

3 years ago

Please helppp thanks!

alexandr402 [8]

Answer:

The probability is 1/36

Step-by-step explanation:

The probability of getting 4 is 1 out of 6 and the probability of gettin a 5 is also 1 out of 6. So if you multiply the probabilities you'll get 1 out of 36.

3 0

3 years ago

Read 2 more answers