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
Alex Ar [27]
3 years ago
6

Please help it’s a test

Mathematics
2 answers:
Andrew [12]3 years ago
5 0

Answer:

12 dollars

Step-by-step explanation:

equatioms

igor_vitrenko [27]3 years ago
3 0

Answer:

x = 12 ($12)

Step-by-step explanation:

3x - 4 = 2x + 8

x = 12

...

You might be interested in
Draw the multiplication table on the P=(3,5,7,9) in module 12​
Lisa [10]

Answer:

Find the attached file for the solution

Step-by-step explanation: To draw the multiplication table on the P=(3,5,7,9) in module 12, create the table where all the given parameters will be at the top of horizontal axis and vertical axis,

When multiply by each other, any value that is below 12 will be written down while the value greater than 12 will be divided by 12 and the remainder will be written down.

Find the attached file for the solution and table.

8 0
3 years ago
A test is used to assess readiness for college. In a recent​ year, the mean test score was 20.3 and the standard deviation was 4
Vlada [557]

Answer:

\mu = 20.3

\sigma = 4.9

And we can find the limits in order to consider values as significantly low and high like this:

Low\leq \mu -2 \sigma= 20.3- 2*4.9 = 10.5

High\geq \mu +2 \sigma= 20.3+ 2*4.9 = 30.1

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

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".

Solution to the problem

For this case we can consider a value to be significantly low if we have that the z  score is lower or equal to - 2 and we can consider a value to be significantly high if its z score is  higher tor equal to 2.

For this case we have the mean and the deviation given:

\mu = 20.3

\sigma = 4.9

And we can find the limits in order to consider values as significantly low and high like this:

Low \leq \mu -2 \sigma= 20.3- 2*4.9 = 10.5

High\geq \mu +2 \sigma= 20.3+ 2*4.9 = 30.1

6 0
3 years ago
How to write an equivalent expression for n times a using only addition
Alina [70]
How to write an equivalent expression for n time a using o
6 0
4 years ago
What is the quotient?
yuradex [85]

Answer:

-1.58208955224

Step-by-step explanation:

DO THE MATH

5 0
3 years ago
Plz help due soon
Zina [86]

Answer:

D

Step-by-step explanation:

6% of 40 is 2.4, 40.00+ 2.40=42.40

6 0
3 years ago
Read 2 more answers
Other questions:
  • Sentence with the word hawk sentences have to be first grade level and understandable to a first grader(A first grader can under
    9·2 answers
  • Sanjay bought T-shirts for his friends on the debate team. The cost of the T-shirts (in dollars) is given by the equation c = 9.
    10·1 answer
  • jill mowed lawns for 3 hours and earned $7.20 per hour.Then she washed windows for 4 hours and earned $6.75 per hour. what were
    14·1 answer
  • What is a correct name for the angle shown bellow​
    7·1 answer
  • What number is 80% of 500
    15·2 answers
  • last year frankie deli made an 11 foot 6 inch submarine this year they plan to make another one 2 feet and 3 inches longer how m
    10·1 answer
  • Which of these is the best definition of an ellipse?
    9·2 answers
  • Show me how to find x using the correct equation shown here (geometry)
    10·1 answer
  • (4m+7n-6p)-(2m-3n-4p)
    7·1 answer
  • The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution wit
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!