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Contact [7]
4 years ago
6

A deck of playing cards has four suits, with thirteen cards in each suit consisting of the numbers 2 through 10, a jack, a queen

, a king, and an ace. The four suits are hearts, diamonds, spades, and clubs. A hand of five cards will be chosen at random.
Which statements are true? Check all that apply.


The total possible outcomes can be found using 52C5.

The total possible outcomes can be found using 52P5.

The probability of choosing two diamonds and three hearts is 0.089.

The probability of choosing five spades is roughly 0.05

The probability of choosing five clubs is roughly 0.0005.
Mathematics
2 answers:
vekshin14 years ago
4 0
Since order does not matter, you use a combination and not a permutation, so the first one is true, which means the second one is not true.
The probability of choosing two diamonds and three hearts can be represented by (13C2 * 13C3)/52C5, which is 0.0086, not 0.089, so the third one is not true.
The probability of choosing five spades and the probability of choosing five clubs are represented by the same thing, 13C5/52C5, which is roughly 0.0005, so the fourth one is not true but the fifth one is. So the answer is the first and fifth one.

Zina [86]4 years ago
3 0

Answer:

Option A and E are correct.

Step-by-step explanation:

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Please help me with my math homework
Dafna11 [192]

Hi there!

\large\boxed{UV = 13}

Since U and V are midpoints of the legs, then UV is the average of both WX and ZY.

Therefore:

(ZY + WX)/2 = UV

Substitute in the given expressions:

[(6x + 5) + (x + 7)]/2 = 8x - 3

Simplify by combining like terms:

(7x + 12)/2 = 8x - 3

Multiply both sides by 2:

7x + 12 = 16x - 6

Subtract 7x from both sides and add 6 to both sides:

18 = 9x

Divide both sides by 9:

18/9 = x

x = 2.

Plug in this value of x into the equation for UV:

8(2) - 3 = 16 - 3 = 13.

8 0
3 years ago
Which construction would you use to construct a right triangle with a compass and a straightedge? A. angle bisector B. copy an a
aleksandrvk [35]
D that’s the reason why it’s there
4 0
3 years ago
(04.05 LC)
Komok [63]

correct answer is option d.

<u>Step-by-step explanation:</u>

Here, we have The following expression to check Which of the following is a polynomial with roots: −square root of 3 , square root of 3, and 2 :

<u>a. x3 + 3x2 − 5x − 15 </u>

For -\sqrt{3} ,  x^{3} + 3x^{2} -5x -15  ⇒ (-\sqrt{3}) ^{3} + 3(-\sqrt{3} )^{2} -5(-\sqrt{3} ) -15 \neq  0 . So, this isn't the one. We move on further!

<u>b. x3 + 2x2 − 3x − 6 </u>

For -\sqrt{3} ,  x^{3} + 2x^{2} -3x -6  ⇒ (-\sqrt{3}) ^{3} + 2(-\sqrt{3} )^{2} -3(-\sqrt{3} ) -6  = 0 .

For \sqrt{3} ,  x^{3} + 2x^{2} -3x -6  ⇒ (\sqrt{3}) ^{3} + 2(\sqrt{3} )^{2} -3(\sqrt{3} ) -6 = 0.

For 2 ,  x^{3} + 2x^{2} -3x -6  ⇒ (2) ^{3} + 2(2)^{2} -3(2 ) -6\neq 0 . So, this isn't the one. We move on further!

<u>c. x3 − 3x2 − 5x + 15 </u>

For -\sqrt{3} ,  x^{3}- 3x^{2} -5x -15  ⇒ (-\sqrt{3}) ^{3}- 3(-\sqrt{3} )^{2} -5(-\sqrt{3} ) -15 \neq  0 . So, this isn't the one. We move on further!

<u>d. x3 − 2x2 − 3x + 6</u>

For -\sqrt{3} ,  x^{3} - 2x^{2} -3x +6  ⇒ (-\sqrt{3}) ^{3} - 2(-\sqrt{3} )^{2} -3(-\sqrt{3} ) +6  = 0 .

For \sqrt{3} ,  x^{3} - 2x^{2} -3x +6  ⇒ (\sqrt{3}) ^{3} -2(\sqrt{3} )^{2} -3(\sqrt{3} ) +6 = 0.

For 2 ,  x^{3} - 2x^{2} -3x +6  ⇒ (2) ^{3} - 2(2)^{2} -3(2 ) +6 = 0.

Therefore, correct answer is option d.

6 0
3 years ago
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Reika [66]

Answer:

I have no any ideas

Step-by-step explanation:

sorry

7 0
2 years ago
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DaniilM [7]

Answer:

Step-by-step explanation:

I don't know the answer but if you go to desmos graphing and type that out it might help you .

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