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Varvara68 [4.7K]
4 years ago
13

Picking a card from a fair deck and, with no replacement, picking

Mathematics
1 answer:
ohaa [14]4 years ago
6 0

The two picks are dependent events. When you have to answer this kind of questions, you should ask yourself: "does knowledge about the first event influence what I expect from the second?"

If the answer is no, the two events are independent. Otherwise, they're dependent.

In this case, when you deal the first card, you have no information whatsoever. You expect each of the 52 cards to be dealt with the same probability 1/52.

Suppose you deal the ace of spades as the first card.

When you're about to deal the second card, does the knowledge about the first card dealt influence what you expect?

Yes! Even if you can't be sure about which card you will deal, you're SURE that you won't deal the ace of spade, because you didn't replace it.

So, the two events are dependent, because the first card dealt changed your expectations for the second card.

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Chelsey put for $450 into an account with a simple interest rate of 2.5% when she withdrew the money she had earned a total of $
fgiga [73]

Answer:

5.66 years

Step-by-step explanation:

450 x 1.025^(n) = 450 + 67.50

450 x 1.025^(n) = 517.50

1.025^(n) =(517.50 / 450)

1.025^(n) = 1.15

n = ln(1.15) / ln(1.025)

n = 5.66

6 0
3 years ago
Which expression is equivalent to this expression? <br><br> thank you :)
CaHeK987 [17]

Answer:

C. -4x - 1

Step-by-step explanation:

-\frac{1}{2}(8x+2)

Distribute the term outside of the parenthesis, Multiply each term in the parenthesis by the term outside (do not forget to include the negative sign when multiplying);

(-\frac{1}{2}(8x))+(-\frac{1}{2}(2))

Simplify,

-4x - 1

6 0
3 years ago
Please help will mark BRAINLIEST!!!
stiks02 [169]

Answer:

b, c, a

Step-by-step explanation:

In a triangle, the largest angle is opposite the longest side. The smallest angle is opposite the shortest side.

This triangle has 2 given angles, 50° and 60°.

We can find the measure of the third angle, x.

50 + 60 + x = 180

x + 110 = 180

x = 70

The three angles have measures 50°, 60°, and 70°.

The shortest side is opposite the smallest angle. That is side a.

The longest side is opposite the largest angle. That is side b.

The order from longest to shortest is

b, c, a

6 0
3 years ago
A. 3/22 <br> B. 3/7<br> C. 8/15<br> D. 8/11
Oliga [24]
Asked and answered previously.
brainly.com/question/10375997

The appropriate choice is ...
   B. 3/7
8 0
3 years ago
PLZ HELP ME I NEED THIS FAST WILL GIVE BRAINLIEST
Bas_tet [7]

Step-by-step explanation:

The formula the amusement parc use is  100y-39000=55(x-800)

The slope intercept form of a function is wriiten generally as:

y = mx+c

  • m is a slope
  • c is a constant and represents the y-intercept
  • x is a variable
  • y is the input of the function

Let's rewrite our equation in the precedent form

  • 100y-39000 = 55(x-800)
  • 100y -39000 = 55x-44000    add 39000 in both sides
  • 100y-39000+39000 = 55x-44000+39000
  • 100y = 55x-5000            divide both sides by 100
  • y = 0.55x-50

The slope intercept form of this equation is:

y= 0.55x-50

4 0
4 years ago
Read 2 more answers
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