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Crazy boy [7]
3 years ago
5

The probability of drawing a heart from a standard deck of 52 playing cards is 1 4 . The probability of drawing a face card from

a standard deck of 52 playing cards is 3 13 . Based on this, Drew determines that the probability of drawing a heart face card is 3 52 . Is this correct? A) Yes, Drawing a heart and drawing a face card are independent events, so P(H ∩ F) = P(H)·P(F) = 1 4 · 3 13 = 3 52 . B) No, Drawing a heart and drawing a face card are independent events, so P(H U F) = P(H) + P(F) = 1 4 + 3 13 = 25 52 . C) No, Drawing a heart and drawing a face card are independent events, so P(H U F) = P(H) + P(F) - P(H ∩ F) = 1 4 + 3 13 - 3 52 = 11 26 . D) No, Drawing a heart and drawing a face card are dependent events, so the P(H ∩ F) = P(H)·P(F|H) = 1 4 · 3 52 + 1 4 · 2 51 = 5 204 .
Mathematics
2 answers:
hoa [83]3 years ago
8 0
We need Probability of drawing a heart Or drawing a face card other than a heart. 

This is 1/4 + 9/52  = 11/26
C is the correct choice.
Kipish [7]3 years ago
5 0
A) Yes, Drawing a heart and drawing a face card are independent events, so P(H ∩ F) = P(H)·P(F) = 1 4 · 3 13 = 3 52
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timama [110]

Answer:

$46

Step-by-step explanation:

A percent is a portion of 100. If  we receive 25% off then we pay 75% of the price. 100%-25%=75%. $34.50 is 75% of the original price. We find the new price through a proportion. A proportion is an equation where two ratios or fractions are equal. The ratios or fractions compare like quantities. For example, we will compare percent over percent to an equal ratio of $ to $.

\frac{75}{100} =\frac{34.50}{y}

I can now cross-multiply by multiplying numerator and denominator from each ratio.

75y=100(34.50)\\75y=3450

I now solve for y by dividing by 75.

\frac{75y}{75} =\frac{3450}{75} \\y= 46....

The original price was $46.


5 0
3 years ago
What’s this answer you guys
RoseWind [281]

Radius is 16, that’s all I know

6 0
2 years ago
I have no idea what I'm supposed to do for this question please explain
maks197457 [2]
For part B
the fixed cost is 500 dollars because it is a set inital amount, the varibale cost is .15 because it is the cost dependent on something else (per indicated variable part)

y=.15x+500
.15 cents per flyer, add 500 because that is the set amount it costs to even create the flyer

Plug in 500 for the equation
y=.15(500)+500
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y=575


for part a b=ka for direct variations so the direct one is C - two items directly multiplied y=mx+b for partial variation so its A,D - basically the equation of a line A is neither - shows neither of these relationships
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3 years ago
Day, everything at a store is on sale. The store offers a 20% discount.
Nutka1998 [239]

Answer:

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Step-by-step explanation:

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The first two steps in the derivation of the quadratic formula by completing the square are shown below.
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Step-by-step explanation:

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