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
Andrei [34K]
3 years ago
13

Find the value of x so that the function has the given value. t(x) = 3x; t(x) 24*

Mathematics
1 answer:
valentina_108 [34]3 years ago
5 0

8 is the answer because we all ķnow 3 ×8=24

You might be interested in
In 2010, the average duration of long-distance telephone calls originating in one town was 9.4 minutes. A long-distance telephon
Zepler [3.9K]

<u>Answer</u>: No, we do not have sufficient evidence to conclude that the mean call duration, µ, is different from the 2010 mean of 9.4 minutes.

Step-by-step explanation:

As per given , we have

H_0: \mu=9.4\\\\H_a:\mu\neq9.4, since H_0 is two-tailed so , the test is a two tail test.

Since population standard deviation is unknown, so we use t-test.

Critical value (two-tailed) for significance level of 0.01= t_{n-1,\alpha/2}=t_{49, 0.005}\pm2.609228

For n =50 , \overline{x}=8.6 and s= 4.8

Test statistic : t=\dfrac{\overline{x}-\mu}{\dfrac{s}{\sqrt{n}}}

t=\dfrac{8.6-9.4}{\dfrac{4.8}{\sqrt{50}}}\approx-1.18

Since test statistic value (-1.18) lies in critical interval (-2.609228, 2.609228), it means the null hypothesis is failed to reject.

We do not have sufficient evidence to conclude that the mean call duration, µ, is different from the 2010 mean of 9.4 minutes.

4 0
2 years ago
Can someone find the surface area please
lozanna [386]
To find the surface area of any object, the first step that you must do is find all shapes that are present in the object.

Here we have 2 triangles and 3 rectangles.

Knowing this, simply find the area of each shape.

Since the triangles are the same, one is facing up and the other down, they both would be 15.6 cm^2.

The rectangles would be 54 cm^2. as there are 3 ( 6 x 3 cm) ones.

Add the values up to have the surface area.

It’s 85.2 cm^2.
3 0
3 years ago
Read 2 more answers
Wood and colleagues (2009) examined the value of self-affirmation. In a typical study, participants either engaged or did not en
maxonik [38]

Answer:

Option A) independent variable – self-affirmations; dependent variable – self-esteem scores

Step-by-step explanation:

We are given the following in the question:

"Wood and colleagues (2009) examined the value of self-affirmation. In a typical study, participants either engaged or did not engage in self-affirmations. Later, their current self-esteem was assessed."

Independent and Dependent Variable:

  • Dependent variable is the variable whose value depends on the independent variable.
  • Independent variable is the free variable.

For the given scenario, self esteem is assessed based on the fact that participants either engaged or did not engage in self-affirmations.

Thus, the dependent variable is self esteem and the independent variable is engagement in self affirmation.

Thus, the correct answer is

Option A) independent variable – self-affirmations; dependent variable – self-esteem scores

8 0
3 years ago
If you add the lengths of the focal radii of an ellipse, what other value will you produce?
ss7ja [257]

Equation of an ellipse

→having center (0,0) , vertex ((\pm a ,0) and covertex (\pm b ,0) and focus (\pm c ,0) is given by:

\frac{x^2}{a^2} + \frac{y^2}{b^2}=1

As definition of an ellipse is that locus of all the points in a plane such that it's  distance from two fixed points called focii  remains constant.

Consider two points (a,0) and (-a,0) on Horizontal axis of an ellipse:

Distance from (a,0) to (c,0) is = a-c = F_{1}

Distance from (-a,0) to (c,0) is = a + c = F_{2}

F_{1} + F_{2} = a -c + a +c

          = a + a

        = 2  a  →(Option A )


8 0
3 years ago
Read 2 more answers
Please help me!!! It’s due Thursday
timama [110]
That should be the answers

5 0
2 years ago
Other questions:
  • Each calendar will sell for $5.00 each write a equation to model the total income,y,for selling c calendars
    15·1 answer
  • The ratio of cats to dogs at the animal shelteris 6:7. If there are a total of 91 cats and dogs, how many of each are there?
    9·1 answer
  • 45 liters of helium at $.42 per liter
    8·1 answer
  • J.T. charges $30 plus $4 an hour to babysit. Which equation and solution shows J.T. earnings for a 4-hour babysitting job? *
    8·1 answer
  • What is the slope of the line through (-4, 2) and (3, -3)?
    12·2 answers
  • A student committee is organizing a school dance as a fundraiser. The function f ( x ) = 5 x − 320 represents the total amount o
    11·2 answers
  • HELP QUICK! I GIVE BRAINLIEST!! What are the correct values for the missing boxes in the ratio table in number 3 above
    14·1 answer
  • HELP ME OUT !!!!!!!!!!!!!!!!!!!!!
    9·2 answers
  • What is 7 1/2 increased by 5 1/4?​
    12·1 answer
  • HELP!! PLSS!! ON A TIMER!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!