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3 years ago

What is the probability of drawing a K, Q or J from a deck of playing cards?

Mathematics

2 answers:

jolli1 [7]3 years ago

6 0

Each of the four sets has a K, Q and J.
That is 3 (each card) times 4 (for each suit) = 12
Each card deck is 52 cards.
The answer is 12/52 or 3/13

rjkz [21]3 years ago

4 0

There are 4 type of cards for each King, Queen, or Jack, so that would be 12 cards over 52 total cards. Simplified would be 3/13.

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If sin 0 = 7/25, find csc 0

kipiarov [429]

Answer:

$csc(\theta)=\frac{25}{7}$

Step-by-step explanation:

We know that:

$sin(\theta)=\frac{7}{25}$

And we want to find:

$csc(\theta)$

Remember that there is a trigonometric identity that relates the $sin(\theta)$ function with the $csc(\theta)$ function

$csc(\theta)=\frac{1}{sin(\theta)}$

Then if $sin(\theta)=\frac{7}{25}$ this means that:

$csc(\theta)=\frac{1}{\frac{7}{25}}$

Finally:

$csc(\theta)=\frac{25}{7}$

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2 years ago

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cupoosta [38]

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