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Tcecarenko [31]
3 years ago
8

Identify the problem with the following study. A local newspaper published the results of a study that claimed "482 people use t

he public library". The study was produced by using a random sample of 87 people from the town​
Mathematics
1 answer:
natita [175]3 years ago
8 0

Answer:

well, only 87 people were asked. How did they get 482?

also, they should have asked the people in the library.

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Need help ASAP I really need help reviewing this!! Making sure if I have the correct answer !!!
kow [346]

Answer:

1) 5

2) 7

3) Mary

Step-by-step explanation:

1) 20/4 = 5 shots

20 shots = 4 minutes

10 shots = 2 minutes

5 shots = 1 minute

2) 42/6 = 7 shots

42 shots = 6 minutes

21 shots = 3 minutes

21 shots divided by 3 minutes equals 7 shots

3) Mary had 7 shots while John only shot 5.

4 0
3 years ago
Find the Taylor series for f(x)=sin(x) centered at c=π/2.sin(x)=∑ n=0 [infinity]On what interval is the expansion valid? Give yo
agasfer [191]

Answer:

sinx =1-\frac{1}{2} (x-\frac{\pi}{2} )^2+\frac{1}{24} (x-\frac{\pi}{2} )^4-\frac{1}{720} (x-\frac{\pi}{2} )^6+\frac{1}{40320} (x-\frac{\pi}{2} )^8+...

Step-by-step explanation:

given that f(x) = sin x

we have to find the Taylor series for that

f(x) = sin x   : f( = 1\\f'(x) = cos x :(f'\frac{\pi}{2})=0\\f"(x) = -sinx :f" (\frac{\pi}{2}) =-1\\f^4 (x) = -cosx : f^4 (\frac{\pi}{2}) =0

and so on.

i.e. 2nd, 4th, 6th terms would be 0

and also 1st, 5th, 9th terms would be positive for f value and 3rd, 9th,... would be negative

Using the above we can write Taylor series as

f(x) = f(a)+\frac{f'(a)}{1!} (x-\frac{\pi}{2}) +...+f^n(a) /n! (x- \frac{\pi}{2})^n+...

sinx =1-\frac{1}{2} (x-\frac{\pi}{2} )^2+\frac{1}{24} (x-\frac{\pi}{2} )^4-\frac{1}{720} (x-\frac{\pi}{2} )^6+\frac{1}{40320} (x-\frac{\pi}{2} )^8+...

This is valid for all real values of x.

x ∈(-\infty, infty)

3 0
3 years ago
What is the range of the absolute value function shown in the graph?
makvit [3.9K]
The correct answer is c
5 0
3 years ago
Read 2 more answers
Katrina and her 7 friends evenly split 4 cookies. How many cookies did each person eat?
Julli [10]
Altogether Katrina and her seven friends equal eight. Eight divided by four is two cookies. The answer is 2.
4 0
3 years ago
Read 2 more answers
5 x 2 x (-4) + 6 divided by 2<br><br> 43<br> -37<br> -23<br> -17
Eva8 [605]
There is a certain order that we follow in doing any mathematical operation:
First we get rid of any operation within brackets, then we do multiplication and divisions and finally we do additions and subtractions.

We need to evaluate: 5x2x(-4) + 6:
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5x2x(-4)+6 = 10x(-4)+6 = -40+6 = -34

Now, we need to divide -34 by 2:
-34/2 = -17

The answer is: -17
7 0
3 years ago
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