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2 years ago

If you are dealt 3 cards from a shuffled deck of 52 cards, find the probability that all 3 cards are queens.

Mathematics

1 answer:

oksian1 [2.3K]2 years ago

3 0

Answer:

I think the answer is 3/52

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2/3x - 2 = 3/7 rewrite without fractions

Nostrana [21]

Answer:

3.64285714286

3 0

2 years ago

Calculate the unknown sides and angles of the triangle ABC given.

creativ13 [48]

<h3>Answer:</h3><h3>See below</h3>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>

law of sine
law of cosine
PEMDAS

<h3>let's solve:</h3>

there are 3 ways to solve SAS triangle

use The Law of Cosines to calculate the unknown side,
then use The Law of Sines to find the smaller of the other two angles
and then use the three angles add to 180° to find the last angle.

first figure out $\angle C$

to do so we will use the formula of law of cosine of C angle

${c}^{2} = {a}^{2} + {b}^{2} - 2ab.\cos(C)$

substitute the given values of a,b and $\angle C$

$\sf{c}^{2} = {6 }^{2} + {3.5}^{2} - 2.6.(3.5). \cos( {25.7}^{ \circ} )$

simplify squares:

$c^{2}=36+12.25-42.\cos(25.7^{\circ})$

simplify addition:

$c^{2}=48.25-42.\cos(25.7^{\circ})$

square root both sides

$\sf \: \sqrt{ {c}^{2} } = \sqrt{ 48.25-42. \cos(25.7^{\circ})}$

simplify:

therefore

$\bold{c=3.23}$

use law of sine to figure out angle A

$\dfrac{6}{\sin( \angle \: A) } = \dfrac{3.23}{\sin(25.7)}$

therefore

$\bold{\angle A=53.66°}$ (use calculater to simplify it)

therefore

$\angle B\: is\: 180^{o}-25.70^{o}-53.66^{o}$

$\bold{= 100.64}$

4 0

2 years ago

Suppose you own 1 stock of Amazon and it cost $750 to buy it. After you buy the stock, it increases by 100%.

viva [34]

Answer:

1500

Step-by-step explanation:

750+750

8 0

3 years ago

Read 2 more answers

Help me on this please. I have some more also.

qwelly [4]

Q-7
____ =-2
-1
First you multiply by negative on to cancel it out
q-7=2
then you add 7 to the other side
q=9

4 0

2 years ago

Write an inequality A family has less than $200 to spend on groceries. Use x as a variable

diamong [38]

Answer:

$200 > x

Step-by-step explanation:

The family has less than $200 to spend on groceries, so x will be less than that amount, so the "greater than" sign will point to $200 because $200 will be greater than x (see above

4 0

2 years ago

If you are dealt 3 cards from a shuffled deck of 52​ cards, find the probability that all 3 cards are queens.

If you are dealt 3 cards from a shuffled deck of 52 cards, find the probability that all 3 cards are queens.