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Leviafan [203]
2 years ago
11

You repeatedly roll an ordinary six-sided die until you roll a perfect square. Let XX be the number of times you roll the die. P

ick the answer choice with the lowest value.
Mathematics
1 answer:
Bumek [7]2 years ago
5 0

Answer:

See below

Step-by-step explanation:

A roll of ' 1 ' or  ' 4 '    would be a perfect square ....two chances out of a possible six rolls    1/3 chance

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Solve for x.<br><br> Help please
MAVERICK [17]
X = 10

The triangles are similar by SAS, so we can set up a proportion of their sides.

9/(33-9) = 12/(3x+2)
9/24 = 12/3x+2

Reduce
3/8 = 12/3x+2

Cross multiply
3(3x+2) = 12*8

Distribute and multiply
9x + 6 = 96

Subtract 6
9x = 90

Divide by 9
x = 10

Check:
9/24 = 12/3x+2
9/24 = 12/3*10 + 2
9/24 = 12/30 + 2
9/24 = 12/32
3/8 = 3/8 :)
4 0
3 years ago
Find the missing probability.<br><br> P(A)=13/20,P(A∩B)=13/25,P(B|A)=?
Tju [1.3M]

By definition of conditional probability,

P(B | A) = P(A ∩ B)/P(A) = (13/25) / (13/20) = 20/25 = 4/5

4 0
3 years ago
What is 2.40 before a 30 percent discount
artcher [175]
2.40 before a 30% discount is 0.72
7 0
3 years ago
Read 2 more answers
This is a pyramid problem so please help out
Degger [83]

Answer:

Step-by-step explanation:

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height = 21.64cm

LA = 5*1/2*12*21.64

= 649.2cm^2

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SA = 649.2 + 247.8 =897cm^2

Volume, V = 1/3 * base area * height

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4 0
3 years ago
Read 2 more answers
What is -9/12 + 4/12=
Fantom [35]

Answer:

I think it would be -0.416 but I'm not real sure so make sure before using my answer! :3 Have a great day!

6 0
3 years ago
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