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3 years ago

Dungeons and dragons uses a twenty-sided cube (dice), what is the probability that you will roll an even or odd prime number?

Mathematics

1 answer:

Basile [38]3 years ago

4 0

Answer:

0.4 or a 40% chance

Step-by-step explanation:

There are 8 prime numbers between 1 and 20 and 8 is two fifths of 20

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Rationalise the denominator and simply

svlad2 [7]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

Let's solve :

$\dfrac{24}{ \sqrt{6} }$

$\dfrac{24}{ \sqrt{6} } \times \dfrac{ \sqrt{6} }{ \sqrt{6} }$

$\dfrac{24 \sqrt{6} }{6}$

$4 \sqrt{6}$

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3 years ago

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What equation correctly shows the relationship between the numbers 580 and 58?

lyudmila [28]

Can you post the answer choices

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3 years ago

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If I’m 24 in 1979 what year was I born in?

Elan Coil [88]

Answer:

1950

Step-by-step explanation:

If you were 24 in 1974, simply subtract 24 from 1974 to find what year you were born in:

1974-24= 1950

Of course, it may be +/- 1 depending on what month you were born in, and what month it is now!

<em>I hope this helps! :)</em>

8 0

3 years ago

Help plssss !!!!!!!!!!

spayn [35]

Answer: x=5

Step-by-step explanation:

ABC=ABD+CBD

ABD=CBD ==> Because they're formed from a bisecting line, meaning the angle ABC is divided into two equal angles.

5x-10=2x+5

3x-10=5

3x=15

x=5

8 0

2 years ago

I tried to figure it out but i can't. i need to show the work and i don't know how to do it.

Andreas93 [3]

Integration Formula:

$\int\limits {x}^{n} \, dx =\frac{x^{n+1}}{n+1} + C$

Integrate each term:

$\int\ {x^{2}} \, dx = \frac{x^{3}}{3}$

$\int\ {x} \, dx =\frac{x^2}{2}$

$\int\ {5} \, dx = 5x$

$\int\ {x} \, dx =\frac{x^2}{2}$

$\int\ {2} \, dx = 2x$

Altogether this becomes:

$\frac{\frac{x^3}{3} - \frac{x^2}{2}-5x }{ \frac{x^2}{2}+2x}$

Your limits are 1 and 2. Substitute both numbers into the equation and minus them from each other.

x = 2:

$\frac{\frac{2^3}{3} - \frac{2^2}{2}-5(2) }{ \frac{2^2}{2}+2(2)}$

x = 1:

$[tex]\frac{\frac{1}{3} - \frac{1}{2}-5 }{ \frac{1}{2}+2}$ [/tex]

x = 2:

$\frac{\frac{8}{3} - \frac{4}{2}-10 }{ \frac{4}{2}+4}$

x = 1: $\frac{\frac{8}{3} - 2-10 }{ 2+4}$

-1.212317928

Now convert all the answers to integers and see which one matches -1.212317928:

Because it's a negative number, we know it can only be A or B.

(A) = -1.212317928

(B) = -1.19047619

The answer is A: $-\frac{3}{2} +In\frac{4}{3}$

7 0

3 years ago