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
melomori [17]
3 years ago
5

Rewrite the function f of x equals 7 times one half to the 3 times x power using the properties of exponents.

Mathematics
1 answer:
Artist 52 [7]3 years ago
8 0

Answer:

f of x equals 7 times one eighth to the x power

Step-by-step explanation:

Given phrase,

function f of x equals 7 times one half to the 3 times x power,

\implies f(x) = 7(\frac{1}{2})^{3x}

By the power to power property of exponent,

That is,

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

f(x) = 7((\frac{1}{2})^3)^x

f(x) = 7(\frac{1}{8})^x

= f of x equals 7 times one eighth to the x power

You might be interested in
What is the period of f(x) = sin(x)?
Lady bird [3.3K]
The regular period is 2pi. If you look up or type in a graphing calculator you can see that's when the sine function starts to repeat itself.
6 0
3 years ago
Read 2 more answers
5. In the figure, . Solve for . Show your work.
natima [27]

Answer:

15

Step-by-step explanation:

6/10=9/x

cross multiply

6x=9*10

6x=90

x=90/6x=15

3 0
3 years ago
If the distribution is really N ( 5.43 , 0.54 ) , N(5.43,0.54), what proportion of observations would be less than 5.05 ? 5.05?
Ipatiy [6.2K]

Answer:

P(X

And we can use the following excel code to find the answer: "=NORM.DIST(-0.704,0,1,TRUE)"

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable of interest for a population, and for this case we know the distribution for X is given by:

X \sim N(5.43,0.54)  

Where \mu=5.43 and \sigma=0.54

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability on this way:

P(Z

And we can use the following excel code to find the answer: "=NORM.DIST(-0.704,0,1,TRUE)"

6 0
3 years ago
Which of the following situations calls for a hypothesis test about a population mean?
tigry1 [53]

Answer:

Step-by-step explanation:

Hypothesis test about a population mean is done to evaluate two exclusive statements about a population in order to determine which is best supported by the sample data.

From the situations given, the correct options are

b. A recent study estimated that 20% of all college students in the United States smoke. The head of Health Services at Goodheart University suspects that the proportion of smokers may be lower there. This would require taking a sample and determining the probability of success.

c. A certain prescription allergy medicine is suppose to contain an average of 245 parts per million (ppm) of active ingredient. The manufacturer wants to check whether the mean concentration in a large shipment of pills is 245 ppm or not.

d. A report on the College Board website stated that in 2003 males scored generally higher than females on the SAT exam. An educational researcher wants to check whether this is true in her school district.

3 0
4 years ago
!!HURRY!!
horrorfan [7]
The answer would be 14
7 0
3 years ago
Read 2 more answers
Other questions:
  • An unknown number x is at most 10. Which graph best represents all the values of x? Number line graph with closed circle on 10 a
    6·2 answers
  • Segment AB is rotated to form ​ A'B'¯¯¯¯¯¯¯ ​. The coordinates of point A are (1, 5) and the coordinates of point B are (−6, 4)
    10·2 answers
  • What is the ratio (multiplier) for the following geometric sequence? 2, 0.5, 0.125, .03125...
    5·1 answer
  • Can someone please help me ?
    7·1 answer
  • If you answer correctly I will give you brainliest 5 stars AND a thank you
    7·2 answers
  • I don’t get it. If u can actually answer it
    8·1 answer
  • What is the average rate of change for this quadratic function for the interval from x = 0 to x = 2?
    6·1 answer
  • I need help please correct answer plz
    8·2 answers
  • BESTIES HELP ME PLEASE ANSWER THIS CORRECLTY, PLEASE TELL ME WHICH ONE OF THESE IS A LINEAR EQUATION, AND WHICH ONE IS NOT. YOU'
    8·1 answer
  • Please help will give Brain
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!