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3 years ago

10

Hannah has a biased coin.

1 answer:

muminat3 years ago

7 0

Look at it this way:

When you flip a coin, the probability of it landing with EITHER side showing
is 100%.

This leads us to the rule ...

The sum of the probabilities of
all possible outcomes is 100%.

For a coin: (probability of heads) plus (probability of tails) = 100%.

That just says: We're 100% sure that the coin will land with either
heads or tails up.

An "honest" coin gets heads 50% of the time and tails the other 50%.

But if the coin is all bent and squashed and has a feather stuck to
one side and a wad of gum on the other side so that it comes up
heads 70% of the time, then the coin isn't 'honest'. But it still has to
land EITHER heads OR tails, so the sum of the probabilities is still 100%.

So the probability of heads is 30%.

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Someone please explain step by step.

dolphi86 [110]

Answer:

${10}^{th} \: term = \frac{5}{512}$

Step-by-step explanation:

geometric progression formula:

${n}^{th} \: term = ar ^{n - 1}$

given:

common ratio, r = 1/2

$first \: term \: = 5$

1) find the value of a

${n}^{th} \: term \: = a {r}^{n - 1}$

we're finding the 1st term, so substitute 1 into n:

${1}^{st} \: term = a( \frac{1}{2} ) {}^{1 - 1}$

first term is 5. so we substitute 5 into the equation:

$5 = a(1)$

$a = 5$

2) find the 10th term

we're finding the 10th term, so substitute 10 into the equation and don't forget to substitute 5 into a:

${10}^{th} \: term = 5( \frac{1}{2} ) {}^{10 - 1}$

${10}^{th} \: term = 5( \frac{1}{512} )$

${10}^{th} \: term = \frac{5}{512}$

6 0

3 years ago

Solve by the linear combination method (with or without multiplication).

iris [78.8K]

I hope this helps you

8 0

2 years ago

PLEASE ANSWER I'LL GIVE YOU BRIANLIEST

Tanya [424]

Answer:

$ 3,213.30

Step-by-step explanation:

2350(1.09)¹⁰ - 2350 = 3,213.30

3 0

2 years ago

In the below system, solve for y in the first equation.

Flura [38]

C
$x - 3y = - 6 \\ - 3y = - 6 - x \\ \frac{ - 3y}{ - 3} = \frac{ - 6 - x}{ - 3} \\ y = 2 - x \\or \\ y = - x + 2$

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3 years ago

Find the center and radius of x^2+y^2+2x-10y+10=0

kumpel [21]

$r^{2} = 16
r=4
(xh)^{2}2+(y-k)2=(x+1)2 +(y-5)2
h=-1,k=5$

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3 years ago