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11Alexandr11 [23.1K]
3 years ago
13

the annual rate of inflation is given by the formula I = (p2/p1)^1/n - 1, where p1 is the initial price of an item and p2 is the

final price of an item over a period of n years. In 1980, the average price of an ounce of gold was $850. By 2011, the average price was $1,800. In this situation, what is n?
Mathematics
1 answer:
aleksklad [387]3 years ago
5 0

Answer:

<h2>The value of n is 31 years.</h2>

Step-by-step explanation:

The given equation is formed by different variables, where n indicates the period of time in years where the rate of inflation is calculated.

In this case, we have a period from 1980 to 2011. The difference between these years would be the period of time used to find the inflation rate.

2011-1980=31

Therefore, the value of n is 31 years.

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Suppose that the handedness of the last fifteen U.S. presidents is as follows: 40% were left-handed (L) 47% were Democrats (D) I
xxTIMURxx [149]

Answer:

Mathematically, two events are considered to be independent if the following relation holds true,

∵ P(B | A) = P(B)

For the given case,

P(D | L) = P(D)

But

0.13 ≠ 0.47

Since the relation doesn't hold true, therefore, "being left-handed" and "being a Democrat are not independent events.

Step-by-step explanation:

We are given that

Left-handed = P(L) = 0.40

Democrats = P(D) = 0.47

If a president is left-handed, there is a 13% chance that the president is a Democrat.

P(D | L) = 0.13

Based on this information on the last fifteen U.S. presidents, is "being left-handed" independent of "being a Democrat?

Mathematically, two events are considered to be independent if the following relation holds true,

∵ P(B | A) = P(B)

For the given case,

P(D | L) = P(D)

But

0.13 ≠ 0.47

Since the relation doesn't hold true, therefore, "being left-handed" and "being a Democrat are not independent events.

3 0
3 years ago
A city had population 67,255 on January 1,2000, and its population has been increasing by 2935 people each year since then. A li
bezimeni [28]

It is given in the question that

A city had population 67,255 on January 1,2000, and its population has been increasing by 2935 people each year since then.

Here initial population , b, is 67255, and the rate of increase of population is 2935 people each year. And that's the value of the slope .

Using slope intercept form, which is

y=mx+b

And substituting the values of m and b, we will get

p(t)=2935t +67255

5 0
4 years ago
Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the other two sides of this t
PSYCHO15rus [73]
The other sides are 12cm and 5cm. This is a Pythagorean triple. It is useful to know them!!! 




Brainliest Answer plz!
8 0
3 years ago
Read 2 more answers
Please help 30 POINTSSSSS
sveta [45]

Answer:

-16

Step-by-step explanation:

0.44×10^-15

4.4×10^-16

4 0
2 years ago
Nick is now seven times as old as Harry. In 6 years, Nick will be five times as old as Harry. How old will Harry be in 6 years?
Papessa [141]
<span>Let x represent Harry's age now, and Nick's age now is 7x. [t] 
In 6 years, Harry is x + 6 , and it is given that Nick's age will be 5(x+6). [t+6] 

Combining [t] and [t+6], 7x + 6 = 5(x+6). 
So the formula 7x + 6 = 5(x+6) represents the problem.

And x = 12 , so Harry's age in 6 years will be x +6 or 18 years .

I hope this helps!</span>
7 0
3 years ago
Read 2 more answers
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