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3 years ago

You are dealt one card from a 52-card deck. find the probability that you are not dealt a two

Mathematics

1 answer:

Rina8888 [55]3 years ago

7 0

There are 52 cards in a deck.

First we find the probability of drawing a 2

There are 4 cards that shows 2

Probability of drawing a 2 card fro 52 cards = 4 / 52

We know that P( not A) = 1 - P(A)

So the probability (not dealt a 2) = 1 - probability (dealt a 2)

= 1 - 4/52

= (52 - 4)/ 52 = 48/52

Now we simplify the fraction

48/ 52 = 12/13

Hence, the probability( not dealt a 2) = 12/13

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3 years ago

a house was purchased for $150,000 the value decreased by 16% how much is the value of the house now

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3 years ago

What is the nth term of the sequence -2 -8 -18 -32 -50

andreev551 [17]

Answer:

-2n²

Step-by-step explanation:

Using the image attached:
We see that the second differences (blue ones) are all equal so we conclude that this is a quadratic sequence.
The quadratic sequence has the form:
$T_{n} = an^{2} +bn +c$

To find the value of a we just divide second difference ( -4 ) by 2:

$a = \frac{-4}{2}= -2$

Now we have:

$T_{n}= -2n^{2} +bn+c$

Substitute $n_{1}$ and $n_{2}$ into the equation above:

$T_{1} = -2(1)^{2} +b(1) +c$

$T_{2} = -2(2)^{2} +b(2)+c$

Since $T_{1}$ = -2 and $T_{2}$ = -8 , after simplification we have:

$b +c =0$
$2b+c=0$

The solution of this system is:

b=0, c =0

The general term is :

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2 years ago

-3=12y-5(2y-7). Solve for y

Yuliya22 [10]

1. distribute the parentheses.
-3=12y-10y+35

2. Move the constants to the other side
-3-35=12y-10y

3. Subtract the terms
-38=2y

4. Divide by 2 to get y by itself
y=-19

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3 years ago

Read 2 more answers

Using the same spinner and die from the problem above, what is the probability of not spinning a blue, and then not rolling a fi

MatroZZZ [7]

This is the answer to your question

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3 years ago

You are dealt one card from a​ 52-card deck. find the probability that you are not dealt a two

You are dealt one card from a 52-card deck. find the probability that you are not dealt a two