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victus00 [196]
3 years ago
10

A stack of playing cards contains 4 jacks, 5 queens, 3 kings, and 3 aces. two cards will be randomly selected from the stack. wh

at is the probability that a queen is chosen and replaced, and then a queen is chosen again?
Mathematics
1 answer:
Kipish [7]3 years ago
7 0

Answer:

1/9.

Step-by-step explanation:

There is a total of 15 cards in the stack.

Prob( Queen is chosen) =  5/15 = 1/3.

The probability of a second queen being chosen is also 1/3

Required probability = 1/3 * 1/3 = 1/9.

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In the following image, AB is parallel to DC, and BC is a transversal intersecting both parallel lines.
Ulleksa [173]

Answer:

In the following image, AB is parallel to DC, and BC is a transversal intersecting both parallel lines.

and the angle marked q° are ________angles.

The angles marked p° and q° are ________

The angle marked p° and are _______angles.

The angles marked q° and n° are _______angles.

The angles marked n° and m° are _______angles.

DONT ANSWER UNLESS YOU KNOW IT

6 0
3 years ago
The mathematical expression 9€ T means
Kaylis [27]

Answer:

Given mathematical expression means that '9 is a member of the set T'.

Step-by-step explanation:

We are given the mathematical expression,

' 9 € T '.

In words, it means '9 belongs to T'.

That is, 'the element 9 belongs to the set T' i.e. '9 is a member of the set T'.

Hence, the given mathematical expression means that '9 is a member of the set T'.

7 0
3 years ago
A scientist wants to find the radius, in feet, of this hemispherical dome. He found that the surface area of the entire sphere c
skelet666 [1.2K]
The surface area of a sphere by definition is given by:
 A = 4 * π * r ^ 2
 Where,
 r: radius of the sphere.
 Substituting the values we have:
 294 = 4 * π * r ^ 2
 We cleared the radio:
 r ^ 2 = (294) / (4 * π)
 Answer:
 An equation that I could use to find the dome's radius is:
 A. r2 = 294 square feet ÷ 4π
7 0
3 years ago
A card is drawn from a standard deck of cards. What is the probability
Black_prince [1.1K]
The probality is 69 420
3 0
3 years ago
(1.2×10^2) + (3.04×10^5)
PSYCHO15rus [73]

(1.2×10^2) + (3.04×10^5)

They must be to the same power to add

3.04 *10^5   to change to the 2nd power (5-2=3) move the decimal 3 places to the right = 3040. * 10^2

1.2 * 10^2   + 3040 *10^2=

add the numbers keep the exponents the same

3041.2 * 10^2

there can only be 1 number before the decimal in scientific notation so we need to move the decimal 3 places to the left, which adds 3 to the exponent

3.0412 * 10 ^ (2+3)

3.0412 * 10^5


8 0
3 years ago
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