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Fed [463]
3 years ago
11

You randomly select one card from a​ 52-card deck. find the probability of selecting a jack of club or the two of diamonds

Mathematics
2 answers:
Svetach [21]3 years ago
7 0
Good. Learning basic probability. The OR rule.
firstly, there are 4 jacks in a pack of 52.
but only 1 jack of clubs, so 
p(jack of clubs) = 1/52
secondly, there are 13 diamonds, and only one two of diamonds. so, 
p(two of diamonds) = 1/13.
The OR rule (sum)
P(jack of clubs OR two of diamonds)= (  1/52 + 1/13) = 0.096





ale4655 [162]3 years ago
6 0
Well, there are 52 cards. The probability of picking 2 out of 52 cards would be:

2/52!   Or in simplest terms, 1/26.
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Help me with this Please.
sukhopar [10]
35
the ratio for the two is 5:7 and you want to find _:49. to get from 7 to 49 you multiply the 7 by 7. because you did that to one side you have to do the same to the other and multiply 5 by 7 which gives you 35
6 0
2 years ago
Identify the 33rd term of the arithmetic sequence 9, 7 and one half, 6...
marta [7]

Answer:

  -39

Step-by-step explanation:

The general term of an arithmetic sequence is ...

  an = a1 +d(n -1)

This sequence has first term a1=9 and common difference d=(7.5-9) = -1.5. Then the 33rd term is ...

  a33 = 9 -1.5(33 -1) = 9 -48 = -39

The 33rd term is -39.

5 0
3 years ago
HELP!!! Which graph best shows the function f(x) = 4(3)−x to represent the rate at which a radioactive substance decays?​
bagirrra123 [75]

Answer:

B

Step-by-step explanation:

The exponential function has the form y = a(b^x) where a is the starting value or y-intercept. B is the rate of change and x is the variable typically time. In this situation, y = 4(3^{-x}) has starting value 4, rate 3 and a -x.

Normally an exponential curve glides left to right growing steeper as it goes. But a -x flips this behavior. The curve starts very steep then gradually slows down. This means only graphs B or D are options. Since only graph B of these two has a y-intercept at 4, graph B is the solution.

7 0
3 years ago
To find the average(mean) of a set of numbers, you first find the sum of the numbers and then divide the sum by the number of nu
photoshop1234 [79]

Answer:

what are the numbers you wsnt to find? if you don't know then you've answeref your own question with this, well, question..!

8 0
3 years ago
Simplify: 8x + 4 - 5
ra1l [238]
To simplify that expression you'll join like terms.

8x + 4 - 5
8x - 1
5 0
3 years ago
Read 2 more answers
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