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3 years ago

Using the discriminant, how many real number solutions does this equation have? 3x^2 – 2 = 5x

1 answer:

7 0

The discriminant of this equation is 49. The solutions for this equation are x=2 and x=- $\frac{1}{3}$
I hope that helps.

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Answer any! Worth 50 points!!!

Nataly_w [17]

Answer:

The answer for #8 is 264

Step-by-step explanation:

1320 divided by 5=264

Hope this helps. Please mark me brainliest

3 0

3 years ago

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Ok, so we have three pen cups, each with two pens in them. One cup has two black, one cup has two red, and one cup has a black a

MA_775_DIABLO [31]

Answer:

okay, Its Big brain time.

BB RR BR

Cup1 Cup2 Cup3

2BP 2RP 1BP

2RP

All the cups are in there correct spot and the labels are fine also.

(then someone had to come in dis room with BLUE CAPS AND REPLACE ALL OTHER THE CORRECTLY ORDERER PEN CAPS WITH BLUE PEN CAPS AND SWITCH THE GOSH DARN LABELS. THANKS ALOT, TIM) anyways... i say that the minimum numbers of pens you can test is about 4. probably....

Step-by-step explanation:

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3 years ago

Which polynomial function could be represented by the graph below?

Fiesta28 [93]

Answer:

C. f(x)=-2x^3-2x^2+12x

Step-by-step explanation:

7 0

3 years ago

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F(x)=e*1/x<br>Calculate f'(x)

Murljashka [212]

Answer:

$\huge\boxed{f'(x)=-\dfrac{e^\frac{1}{x}}{x^2}}$

Step-by-step explanation:

$(e^x)'=e^x\\\\\bigg[f\bigg(g(x)\bigg)\bigg]'=f'\bigg(g(x)\bigg)\cdot g'(x)\\\\\left(\dfrac{1}{x}\right)'=-\dfrac{1}{x^2}\\\\====================$

$f(x)=e^\frac{1}{x}=\left(e^\frac{1}{x}\right)'\cdot\left(\dfrac{1}{x}\right)'=e^\frac{1}{x}\cdot\left(-\dfrac{1}{x^2}\right)=-\dfrac{e^\frac{1}{x}}{x^2}$

6 0

4 years ago

Solve for x in the picture please.

SCORPION-xisa [38]

Answer:

X=20

Step-by-step explanation:

The 3 angles all add up to 180º because they are a straight line.

3x + 80 + 2x = 180

5x + 80 = 180

5x + (80-80) = 180-80

5x = 100

5x/5 = 100/5

X=20

Hope this helps!

8 0

3 years ago

Read 2 more answers