a card is picked at random from a pack of 52 playing cards find the probability of not getting a spade.

2 answers:

7 0

Answer:
Since there are 13 spades in a deck of 52 cards, the probability of not getting a spade would be 52/52 - 13/52 which is 3/4. If the question does not tell you which form to put it in, leave it as a fraction but if it wants it as a percentage, the answer would be 75%
Hope this helps!

valentinak56 [21]3 years ago

3 0

Answer:

3/4

Step-by-step explanation:

In a pack of 52 cards, there are 13 spades and the remaining is 39 are not spades.

Therefore, probability of drawing a card that is not getting a spade is = 39/52 i.e. 3/4

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How do we express 5 times the quotient of some number and ten?

noname [10]

Answer:

$5(\frac{z}{10})$ is the correct answer for your question!

Step-by-step explanation:

$5(\frac{z}{10})$ is how we express "5 times the quotient of some number and ten"

hope this helped you!

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A scalar and matrix multiplication problem

pentagon [3]

Answer:

$\left[\begin{array}{ccc}-32\\4\\20\\-36\end{array}\right]$

Step-by-step explanation:

The product of a scalar times the matrix involves the product of that scalar times each of the elements of the matrix, resulting on the multiplication by "-4" of each of the four elements as shown below. These new product values end up being the new matrix elements.

$-4*\left[\begin{array}{ccc}8\\-1\\-5\\9\end{array}\right] = \left[\begin{array}{ccc}-32\\4\\20\\-36\end{array}\right]$