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3 years ago

Halla el volumen de un cilindro de 25m de diametro y 12m de altura

Mathematics

1 answer:

masya89 [10]3 years ago

5 0

Answer:

EASYYY RBO

Step-by-step explanation:

OH THIS IS EASY . EASYYYYYYYYYYYYYYYYYYYYYYYYY IM TIRED

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Which are the solutions of x2 = 19x + 1?

Finger [1]

Answer:

$(\frac{19-\sqrt{365}} {2},\frac{19+\sqrt{365}} {2})$

Step-by-step explanation:

we have

$x^2=19x+1$

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-x^{2}-19x-1=0$

$a=1\\b=-19\\c=-1$

substitute in the formula

$x=\frac{-(-19)\pm\sqrt{-19^{2}-4(1)(-1)}} {2(1)}$

$x=\frac{19\pm\sqrt{365}} {2}$

$x=\frac{19+\sqrt{365}} {2}$

$x=\frac{19-\sqrt{365}} {2}$

$(\frac{19-\sqrt{365}} {2},\frac{19+\sqrt{365}} {2})$

therefore

StartFraction 19 minus StartRoot 365 EndRoot Over 2 EndFraction comma StartFraction 19 + StartRoot 365 EndRoot Over 2 EndFraction

6 0

3 years ago

Read 2 more answers

Square root of -49 in terms of i

natita [175]

Answer:

Step-by-step explanation:

We know that i = √-1

Then solving the given:

√-49 = √49×(-1) = √49 × √-1 = 7×√-1 = 7i

So the answer is:

√-49 = 7i

3 0

4 years ago

How do you write the difference of a number and eight, divided by ten

ch4aika [34]

Answer:

(x-8)/10

Step-by-step explanation:

-------

7 0

3 years ago

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George studied 3/4 hour on monday and 7/8 hour on tuesday. how long did he study altogether on both days?

pentagon [3]

$\dfrac{3}{4}+\dfrac{7}{8}=\dfrac{3\cdot2}{4\cdot2}+\dfrac{7}{8}=\dfrac{6}{8}+\dfrac{7}{8}=\dfrac{6+7}{8}=\dfrac{13}{8}=\dfrac{8+5}{8}=\dfrac{8}{8}+\dfrac{5}{8}=1\dfrac{5}{8}\\\\Answer:\boxed{1\frac{5}{8}\ hour.}$

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3 years ago

1 each of the two items that Val bought cost more than 10$ 2. Val spent 34$ for the 2 items. 3. Neither of the two items that Va

DerKrebs [107]

Statement : Val spent $ 34 for the 2 items

contradiction : Neither of the 2 items that Val bought cost more then $ 15

think about it....if neither of them cost more then 15....lets say they cost 15 each...then there is no way he spent $ 34.....he would spend at most $ 30

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3 years ago

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Halla el volumen de un cilindro de 25m de diametro y 12m de altura​

Halla el volumen de un cilindro de 25m de diametro y 12m de altura