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Art [367]
3 years ago
14

Someone draws a card at random from a deck, and then, without replacing the first card, draws a second card. What is the probabi

lity that both cards will be aces?
Mathematics
1 answer:
Feliz [49]3 years ago
4 0
<span>Event A is that the first card is an ace. Since 4 of the 52 cards are aces, P(A) = 4/52 = 1/13. Given that the first card is an ace, what is the probability that the second card will be an ace as well? Of the 51 remaining cards, 3 are aces. Therefore,<span> P(B|A)</span> = 3/51 = 1/17, and the probability of A and B is 1/13</span><span> × </span><span>1/17 = 1/221. The same reasoning is applied to marbles in a jar</span>
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sergeinik [125]

The answer to that are c and b or b and c I hope that this helps!

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3 years ago
How to help my child study times tables
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6 0
3 years ago
g The background of a printed company logo is in the shape of an ellipse with height 20 inches and width 24 inches. Find an equa
myrzilka [38]

Answer:

Equation is x^2/576+y^2/400=1

Vertical height is 19.84inches

Step-by-step explanation:

The equation of an ellipse with horizontal major axis with center at (0,0) is x^2/a^2+y^2/b^2=1

From the question, a=24 and b=20

Therefore the equation of the ellipse = x^2/24^2+y^2/20^2=1

= x^2/576+y^2/400=1

To calculate vertical height y:

y^2/400=1- x^2/576

y^2=(1- x^2/576)*400

y=20√(1- x^2/576)

At x=3 inches from the centre

y=20√1-0.0156

y=20*0.9922

y=19.84inches

3 0
4 years ago
Find the radius and the circumference to the nearest hundredth when d ≈ 3.8 in.
ozzi
Radius = 1.9 in.
circumference = 11.94 in.
8 0
3 years ago
A bicycle is on sale at $12 more than half of the regular price. If the sale price is $75, find the regular price.
konstantin123 [22]
So 12 more than half the regular price.
let's let p be the original price.

\frac{1}{2} p + 12 = 75
right?
Now you just have to solve from there.
6 0
3 years ago
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