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kirill115 [55]
3 years ago
14

A coin that, when flipped, comes up heads with probability p is flipped until either heads or tails has occurred twice. Find the

expected number of flips.

Mathematics
1 answer:
scZoUnD [109]3 years ago
7 0

Answer:

Following are attached the images for step by step solution.

I HOPE IT WILL HELP YOU A LOT!

Step-by-step explanation:

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Find x in this proportion.<br> 5/2x=25/4<br> x=__?<br> 2/5<br> 5/2<br> 4/5<br> 8/5
8_murik_8 [283]
Correct answer is A.

\frac{5}{2x} = \frac{25}{4} &#10;\\&#10;\\2x\times 25=5\times 4&#10;\\50x=20&#10;\\&#10;\\x= \frac{20}{50}= \frac{2}{5}
8 0
3 years ago
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What is the equation of the line that is perpendicular to the given line and passes through the point (5,3)
Pani-rosa [81]

perpendicular lines have a slope that is a negative reciprocal


A) 4x-5y=5

subtract 4x

solve for y

-5y = -4x+5

divide by -5

y = 4/5 x+5   slope is 4/5  perpendicular slope is -5/4

y -y1 =m(x-x1)  point slope form of a line

y-3 = -5/4 (x-5)

B)  5x+4y = 37

subtract 5x

4y =-5x +37

divide by 4

y =-5/4 x +37/4  slope is -5/4 perpendicular slope is 4/5

y -y1 =m(x-x1)  point slope form of a line

y-3 = 4/5 (x-5)

C)4x+5y=5

subtract 4x

5y = -4x +5

divide by 5

y = -4/5 x +1

y =-4/5 x +1  slope is -4/5 perpendicular slope is 5/4

y -y1 =m(x-x1)  point slope form of a line

y-3 = 5/4 (x-5)

D)5x-4y=8

subtract 5x

-4y = -5x+8

divide by -4

y = 5/4 x-2

y =5/4 x +-2 slope is 5/4 perpendicular slope is -4/5

y -y1 =m(x-x1)  point slope form of a line

y-3 = -4/5 (x-5)



6 0
3 years ago
The result of rounding the whole number 2,746,052 to the nearest hundred thousands place is:
Rasek [7]
The answer would be 2,700,000.
This is because of the rules of rounding.
If a digit is 4 or smaller, it rounds down.
If a digit is 5 or more, it rounds up.
The number is 2, 746, 052 so it stays at 700,000.

TLDR: 2,700,000
6 0
3 years ago
9-3(x-6) = 2(x-4)-10
vazorg [7]

Answer: x = 9

Step-by-step explanation: your welcome

8 0
3 years ago
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Solve for x:<br> 4(1-x)+3x=-2(x+1)
Orlov [11]

Answer:

Solve for  x  by simplifying both sides of the equation, then isolating the variable.

x  =  − 6

Step-by-step explanation:

I hope this helps! Have a nice day!

8 0
2 years ago
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