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noname [10]
3 years ago
9

Jane will draw one card from the regular deck of 52 cards. In how many ways can she choose a jack or a black card?

Mathematics
2 answers:
spayn [35]3 years ago
8 0

Answer:

5

Step-by-step explanation:

elena-s [515]3 years ago
3 0

Answer:

28

Step-by-step explanation:

In a regular 52 card deck, 26 are black (clubs or spades).  Additionally, there are two red jacks (diamonds and hearts).  This equals 28/52.  As a probability, it would be 28/52=14/26=7/13.  This could also be expressed as a percentage or decimal.  0.538 or 53.8%.  But the question asks <em>how many ways</em> can she choose a jack or black card, so I’m assuming they don’t want the probability, just the number, which is 28.

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PLEASE HELP I WILL MAKE BRAINLIST
kotykmax [81]

Answer:

22

Step-by-step explanation:

Generate the terms of sequence T using the nth term formula n² - 3

a₁ = 1² - 3 = 1 - 3 = - 2

a₂ = 2² - 3 = 4 - 3 = 1

a₃ = 3² - 3 = 9 - 3 = 6

a₄ = 4² - 3 = 16 - 3 = 13

a₅ = 5² - 3 = 25 - 3 = 22

22 is common to sequence S and T

6 0
3 years ago
15s^11-25s^4 factorised <br><br> plz tell me. :)
saveliy_v [14]

For the numeric part, you'll have to find the GCD of 15 and 25, which is 5. So, we can factor a 5 and we have

5(3s^{11}-5s^4)

As for the literal part, you can factor s^4 because it's the power of s with the smallest denominator. So, we have

5s^4(3s^7-5)

8 0
3 years ago
Algebra pyramid please answer !! be the first to be marked as a brainliest .
azamat

Answer:

The first pyramid:

      63x

  39x  24x  

23x  16x  8x

The second pyramid:

     162x

 82x  80x  

4x  78x  2x

The third pyramid:

     12a+2b

9a+b   3a+b  

9a     b     3a

The fourth pyramid:

      -19a

  -5a   -14a  

3a   -8a  -6a

   

Step-by-step explanation:

All that an alegbra pyramid is is adding the two terms below it.

So you can see how I added the terms that lied below each number, such as in number 1:  I added 23x and 16x to get me 39x, and I added 16x and 8x to get me 24.

Hope this helped!

4 0
3 years ago
How do u add and subtract negative fractions?
Montano1993 [528]
It’s just like solving a positive fraction find a common denominator and Add or subtract
4 0
3 years ago
Read 2 more answers
1. An airplane on autopilot took 5 hours
Leto [7]

Answer:

  695 kph

Step-by-step explanation:

To find kilometers per hour, divide kilometers by hours:

  (3475 km)/(5 h) = 695 km/h

7 0
4 years ago
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