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2 years ago

As an estimation we are told 5 miles is 8 km.Convert 55 miles to km

Mathematics

2 answers:

aleksandrvk [35]2 years ago

4 0

Answer:
440 km

Answer:

puteri [66]2 years ago

3 0

Answer:

88 km.

Step-by-step explanation:

If 5 miles is 8 km,

55 miles is 88 km.

What you need to do is 55/5 = 11.

Then multiply that 11 to 8.

11 * 8 = 88.

Basically, if you are multiplying 5 by 11 to get 55, you need to multiply 8 by 11 to get 88.

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A coin, having probability p of landing heads, is continually flipped until at least one head and one tail have been flipped. (a

Natali [406]

Answer:

(a)

The probability that you stop at the fifth flip would be

$p^4 (1-p) + (1-p)^4 p$

(b)

The expected numbers of flips needed would be

$\sum\limits_{n=1}^{\infty} n p(1-p)^{n-1} = 1/p$

Therefore, suppose that $p = 0.5$ , then the expected number of flips needed would be 1/0.5 = 2.

Step-by-step explanation:

(a)

Case 1

Imagine that you throw your coin and you get only heads, then you would stop when you get the first tail. So the probability that you stop at the fifth flip would be

$p^4 (1-p)$

Case 2

Imagine that you throw your coin and you get only tails, then you would stop when you get the first head. So the probability that you stop at the fifth flip would be

$(1-p)^4p$

Therefore the probability that you stop at the fifth flip would be

$p^4 (1-p) + (1-p)^4 p$

(b)

The expected numbers of flips needed would be

$\sum\limits_{n=1}^{\infty} n p(1-p)^{n-1} = 1/p$

Therefore, suppose that $p = 0.5$ , then the expected number of flips needed would be 1/0.5 = 2.

7 0

2 years ago

A printer needs 12,000 good copies of a flyer for a particular job. Previous experience has shown that she can expect no more th

PilotLPTM [1.2K]

Answer:

12600

Step-by-step explanation:

5% of 12000 is 600 so just add them

8 0

2 years ago

If if four points are collinear, that are also coplanar: true or false??

Aliun [14]

if four points are collinear, that are also coplanar: This is true

If points lie in the same line. they must lie in the same plane

7 0

3 years ago

Can someone please help me I really need help desperately :(

motikmotik

Answer:

Step-by-step explanation:

7.5/1.5 = 12/t

4 0

2 years ago

What is this answer?

kvasek [131]

I got S > 2
Because you would multiply both sides by two then subtract by twelve
_

3 0

3 years ago

As an estimation we are told 5 miles is 8 km.Convert 55 miles to km​

As an estimation we are told 5 miles is 8 km.Convert 55 miles to km