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Salsk061 [2.6K]
3 years ago
6

Find the valuex- 1/x​

Mathematics
1 answer:
Artyom0805 [142]3 years ago
3 0

Answer:

the value of x-1/x is given down

Step-by-step explanation:

=(x+1/x)²=x²+1/x²+2

=(5)²=x²+1/x²+2

=x²+1/x²=25-2

=x²+1/x²=23 this is the answer

if u ask there how 25 came means there (5)² is that u should multiply 5×5 and u will get 25bas the answer

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The test statistic of z=1.92 is obtained when testing the claim that p≠0.767. a. Identify the hypothesis test as being​ two-tail
Makovka662 [10]

Answer:

it is a two tailed test

The p - value for z=1.92  is 0.9726

Using a significance level of α=0.10, We fail to reject H0. The calculated z value lies out side the Zα value.

Step-by-step explanation:

For p≠0.767

Taking  null hypothesis as p≠0.767 and alternate hypothesis as p =0.767

H0 :p≠0.767  Ha :p≠0.767  it is a two tailed test

The p - value for z=1.92  is 0.9726 from the table.

Using a significance level of α=0.10

z value for 0.10 for two tailed test is ± 1.645

Z >zα

1.92> ± 1.645

Using a significance level of α=0.10, We fail to reject H0. The calculated z value lies out side the Zα value.

7 0
4 years ago
If f(x) = -x^2+4x-9 and g(x) = x - 8 find g(f(-1)).​
satela [25.4K]

Answer: g(f(-1))=-22

Step-by-step explanation:

To find g(f(-1)), you want to first want to solve f(-1). Once you solved that, you plig the answer you get into g(x). Then, you will have your final answer.

f(-1)=-(-1)²+4(-1)-9                  [exponent]

f(-1)=-1+4(-1)-9                       [multiply]

f(-1)=-1-4-9                             [subtract from left to right]

f(-1)=-14

We have found that f(-1)=-14. Now, we know in -14 into g(x) and solve.

g(-14)=(-14)-8                         [subtract]

g(-14)=-22

Now, we know that g(f(-1))=-22.

5 0
3 years ago
when i post these questions just solve them for my brother will ya plz he will give thanks to who ever does it
pogonyaev

Answer:

1/4 or 5/20

Step-by-step explanation:

You find how many numbers are above 10. Then find the frequency and add them together, that will be your numerator. The total number of tries is 200, that is your denominator.

7 0
3 years ago
What is 8,752 rounded to the nearest hundred
nydimaria [60]
8800 Since the number in the tens place is 5, the number in the hundreds place goes up. 0-4 rounds down 5-9 rounds up
5 0
3 years ago
Read 2 more answers
A sock drawer has 3 pink socks, 4 black socks, and 5 brown socks. how many socks does yitz need to pull out to guarantee that he
Oduvanchick [21]
If, by chance, you pulled out a pink sock, then a black sock, then a brown sock, the next sock you pull out will definitely match one of those. The answer is 4 socks.
3 0
3 years ago
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