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LUCKY_DIMON [66]
3 years ago
7

Can someone help me please

Mathematics
1 answer:
disa [49]3 years ago
3 0

Answer:

We're told that the chance of landing heads is 2/7, which means that the chance of landing a tail is 5/7.

The chance of rolling each combination then is:

h, h: (2/7) * (2/7) = 4/49

h, t: (2/7) * (5/7) = 10/49

t, h: (5/7) * (2/7) = 10/49

t, t: (5/7) * (5/7) = 25/49

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andrew11 [14]

Answer: 3b^3(3b^5+8)

Step-by-step explanation:

They have a 3 in common and both expressions have at least 3 b 's

7 0
3 years ago
A blue die and a red die are thrown. B is the event that the blue comes up with a 6. E is the event that both dice come up even.
iVinArrow [24]

Answer:

Size of |E n B| = 2

Size of |B| = 1

Step-by-step explanation:

<em>I'll assume both die are 6 sides</em>

Given

Blue die and Red Die

Required

Sizes of sets

- |E\ n\ B|

- |B|

The question stated the following;

B = Event that blue die comes up with 6

E = Event that both dice come even

So first; we'll list out the sample space of both events

B = \{6\}

E = \{2,4,6\}

Calculating the size of |E n B|

|E n B| = \{2,4,6\}\ n\ \{6\}

|E n B| = \{2,4,6\}

<em>The size = 3 because it contains 3 possible outcomes</em>

Calculating the size of |B|

B = \{6\}

<em>The size = 1 because it contains 1 possible outcome</em>

8 0
3 years ago
Please answer with everything needed i appreciate everyones help
yawa3891 [41]
Recheck the answer with your teacher.

4 0
1 year ago
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Solve for r 5(r-10)= -51
Sloan [31]

Answer:

r= -1/5

Step-by-step explanation:

Step 1: Remove the parentheses (5r-10= -51)

Step 2: Move the constant to the right-hand side and change the sign (5r= -51 + 50)

Step 3: Calculate the sum of -51 +50 (5r = -1)

Last Step: Divide both sides by the equation by 5 (r = -1/5)

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3 years ago
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solniwko [45]

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Step-by-step explanation: 3 times 3 is 9

9 times 3 is 27

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3 years ago
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