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nexus9112 [7]
3 years ago
6

You placed each of these cards in a brown paper bag and randomly select one and then record your results. After each selection,

you place it back in the bag and select another. You do this for a total of 50 times and your results are: 6 times you picked the ace, 14 times you picked the 2, 13 times you picked the 3, 4 times you picked the 4, and 13 times you picked the 5. After looking at your results, what is the experimental probability of selecting the 4? Hint: You may have to reduce. *
Mathematics
1 answer:
otez555 [7]3 years ago
5 0

Answer:

The experimenta probability of picking a 4 is \frac{4}{50}

Step-by-step explanation:

To determine the experimental probability, we just need to divide the number of observations of the specific event by the total number of trials. In this case, we are interested in the event "picking a 4 card". This event happened 4 times. We have a total number of trials of 50. So , the experimental probability is

\frac{4}{50}

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The x intercepts of a parabola are (6,0) and (-2,0) determine the x coordinate of the vertex
lubasha [3.4K]
This means that (x-6)(x+2) = f(x) is the equation for the parabola due to that if you plug these in, when x=6 and x=-2 then y=0. Expanding it, we get
x^2+2x-6x-12=x^2-4x-12. Since the x coordinate of the vertex is -b/2a, it's 4/2=2
4 0
3 years ago
Add.
kakasveta [241]

To add expressions, you should take note that you can only combine same terms which means they have the same degree of exponents.

-5x^4 + 6x^3 – 43 + 6x^5 – x^2 + 12x + 12

In this expression, you can only combine the constants because they are the only similar terms:

-5x^4 + 6x^3 + 6x^5 – x^2 + 12x + 12 – 43

-5x^4 + 6x^3 + 6x^5 – x^2 + 12x – 31

The standard form starts with the term with the highest exponent so you just have to arrange the terms:

6x^5 - 5x^4 + 6x^3 – x^2 + 12x + 12

 

 

 

5 0
3 years ago
Read 2 more answers
It is recommended that one fire extinguisher be available for every 6000 ft.² in a building right and solve an equation to deter
irina [24]
6000x = 135000; x ≈ 23.

We are required to have one fire extinguisher for every 6000 ft of space in the building; this means we need to find out how many 6000-ft spaces we have in 135000.

Solving this equation, we divide both sides by 6000:
6000x/6000 = 135000/6000 = 22.5 ≈ 23
6 0
3 years ago
I need help with this can you show me how to work it out pls
JulsSmile [24]

Answer:

Answer is in the pic

Step-by-step explanation:

A translation is just a movement of the figure so in this case you just add 3 to the x part of the coordinate.

so originally k (-2,5)    m (-3,1)      l (1,1)

add 3 to x so

k (1,5)   m (0,1)   l (4,1)

3 0
3 years ago
I am in serous help on this anybody please!!!
Annette [7]
Should be C.

This is the first time I know FOIL represents : First, outer, inner and last. It represents the method to solve the product of binomials.
4 0
3 years ago
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