1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jeyben [28]
2 years ago
10

Simplify (7 1/5)5 Please show work

Mathematics
2 answers:
Westkost [7]2 years ago
5 0

7 ^ 1/5 ^ 5

power to a power is multiplied

7 ^ (1/5 *5)

7^1

7

Choice A

Lena [83]2 years ago
4 0

Answer:

7

Step-by-step explanation:

(7^\frac{1}{5})^5

Apply exponential property to simplify the exponent

(a^m)^n = a^{mn}

Multiply the outside exponents

In the given expression the outside exponent are 1/5 and 5

\frac{1}{5} \cdot 5= 1

(7^\frac{1}{5})^5

7^1=7

You might be interested in
Omg pls help it’s my last question and i’m timed
inysia [295]
2 kilograms= 2000 grams
8 0
3 years ago
Read 2 more answers
Find the equation (in terms of x) of the line through the points (-2,3) and (4,-9)<br> y =
shepuryov [24]

Answer:

y =5

Step-by-step explanation:

m=

−9−7

5−5

=

−16

0

=0

y=mx+b

5=(0)(7)+b

b=5

therefore y = 5

3 0
3 years ago
Read 2 more answers
Which of the following is not something that you could do with a normal checking account
Svetlanka [38]
Picture?????????????????
6 0
3 years ago
Life rating in Greece. Greece has faced a severe economic crisis since the end of 2009. A Gallup poll surveyed 1,000 randomly sa
elena-s [515]

Answer:

a

        The population parameter of interest is the true proportion of Greek who are suffering

    While the point estimate of this parameter is  proportion of those that would rate their lives poorly enough to be considered "suffering". which is 25%  

b

   The condition  is met

c

   The  95% confidence interval is   0.223 <  p  < 0.277

d

      If the confidence level is increased which will in turn reduce the level of significance but increase the critical value(Z_{\frac{\alpha }{2} }) and this will increase the margin of error( deduced from  the formula for margin of error i.e  E \ \alpha \  Z_{\frac{\alpha }{2} } ) which will make the confidence interval wider

e

  Looking at the formula for margin of error if the we see that if the  sample size is increased the margin of error will reduce making the  confidence level narrower

Step-by-step explanation:

From the question we are told that

    The sample size is  n  =  1000

     The  population proportion is  \r p  = 0.25

     

Considering question a

   The population parameter of interest is the true proportion of Greek who are suffering

    While the point estimate of this parameter is  proportion of those that would rate their lives poorly enough to be considered "suffering". which is 25%  

Considering question b

The condition for constructing a confidence interval is

        n *  \r p >  5\  and  \   n(1 - \r p ) >5

So  

        1000 *  0.25 > 5 \  and \  1000 * (1-0.25 ) > 5

         250  > 5 \  and \  750> 5

Hence the condition  is met

Considering question c

    Given that the confidence level is  95%  then  the level of significance is mathematically evaluated as

          \alpha  =  100 - 95    

          \alpha  =  5 \%

          \alpha  =  0.05

Next we obtain the critical value of \frac{\alpha }{2} from the normal distribution table, the value is  

              Z_{\frac{\alpha }{2} }  =  1.96        

Generally the margin of error is mathematically represented as

         E =  Z_\frac{ \alpha }{2}  *  \sqrt{ \frac{\r p (1 - \r p ) }{n} }

substituting values

         E =  1.96  *  \sqrt{ \frac{ 0.25 (1 - 0.25 ) }{ 1000} }

         E =  0.027

The  95% confidence interval is mathematically represented as

            \r p  - E  <  p  <  \r p  + E

substituting values  

           0.25 -  0.027  <  p  < 0.25 + 0.027

substituting values

           0.223 <  p  < 0.277

considering d

  If the confidence level is increased which will in turn reduce the level of significance but increase the critical value(Z_{\frac{\alpha }{2} }) and this will increase the margin of error( deduced from  the formula for margin of error i.e  E \ \alpha \  Z_{\frac{\alpha }{2} } ) which will make the confidence interval wider

considering e

     Looking at the formula for margin of error if the we see that if the  sample size is increased the margin of error will reduce making the  confidence level narrower

   

5 0
3 years ago
Juan’s purchase before sales tax was added totaled $46.00. the total including tax was $48.76. what was the sales tax rate?
Klio2033 [76]
The sales tax rate is 6%.
4 0
2 years ago
Read 2 more answers
Other questions:
  • Find the range for the set of data.
    6·2 answers
  • A principal of $4500 is invested at 5.75% Interest, compounded annually. How much will the investment be worth after 5 years?
    7·1 answer
  • Accident rate data y1, ...., y12 were collected over 12 consecutive years t=1,2,...12. At over 12 consecutive years t = 1,2,...,
    11·1 answer
  • Bob discovers a box with 30 identical, used, rechargeable batteries in his attic. Suppose each of them is equally likely have so
    11·1 answer
  • Can someone please help me? I’m so close...
    9·1 answer
  • 3 Simplify the expression: 5! 2:3! 4. Simplify the expression:​
    11·1 answer
  • Use intercepts to graph the linear equation –2x + 6y =18
    8·2 answers
  • Graph the following equation: <br>y= x-2<br><br>y= -1/5x - 8
    12·1 answer
  • What is a number that when<br> you subtract 12 and then divide<br> the difference by 3 will equal 6?
    14·1 answer
  • Write 7.63 × 10^–6 in an ordinary number.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!