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
Soloha48 [4]
2 years ago
7

Solve the equation for x :

Mathematics
1 answer:
fiasKO [112]2 years ago
5 0
X=8 my photo has the work done

You might be interested in
Pat ran 18/24 of the distance to the park what is the fraction in simplest form
Nikitich [7]
18/24 can both be divided by 6, so it's 3/4
3 0
2 years ago
Read 2 more answers
Assume that a computer was used to generate the given confidence interval for the population mean. Find the sample mean or margi
stealth61 [152]

Answer:

The sample mean is

b.3.55

The margin of error is

0.32

Step-by-step explanation:

Deep explanation about a confidence interval

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.645*215 = 353.675

The lower end of the interval is the mean subtracted by M. So it is 6.4 - 0.3944 = 6.01 hours.

The upper end of the interval is the mean added to M. So it is 6.4 + 0.3944 = 6.74 hours.

In this problem:

The deep explanation is not that important.

We just have to recognize that the interval has a lower end and an upper end. The distance from both the upper and the lower end to the mean is M. This means that the sample mean is the halfway point between the lower end and the upper end.

The margin of error is the distance of these two points(lower and upper end) to the mean.

In our interval

Lower end: 3.23

Upper end: 3.87

Sample mean

M = \frac{3.23 + 3.87}{2} = 3.55

So the correct answer is:

b.3.55

The margin of error is

3.87 - 3.55 = 3.55 - 3.23 = 0.32

4 0
3 years ago
Pls someone help with this!!! ASAP
andriy [413]
It would be 22 x 3.14 = 69.08 i’m pretty sure lolol sorry if i’m wrong
5 0
2 years ago
The population of fish in a pond in relation to the number of years since stocking is depicted on a graph. For the first few yea
Viktor [21]

Answer:

graph c is the correct answer

7 0
3 years ago
Read 2 more answers
Suppose the contact rate for a phone survey is 78% and that 22% of people will participate in that survey. Assume that agreeing
Gnoma [55]
Remember that, for independent events, the probability that both occurr is the product of the individual probabilities.

a) Probability of being contacted: 78% = 0.78

Probaility of refusing: 1 - 22% = 1 -0.22 = 0.78

Combined probability: 0.78*0.78 = 0.6084

b) The probability of failing to contact or making contact and not geeting them to agree 1 - the probability of contacting and getting them to agree.

The probabilityof contacting and getting them to agree is 0.78*0.22 = 0.1716

The the answer to this question is 1 - 0.1716 = 0.8284


 
8 0
3 years ago
Other questions:
  • What’s the mean of all odd integers between 16 and 47
    12·2 answers
  • Express the product of cos 30°and 45° in simple simplest radical form
    12·2 answers
  • *The length of the shorter altitude and the shorter side of a parallelogram are 9cm and 82 cm. The length of a longer diagonal i
    9·1 answer
  • 3 8 - 1 4 += 1 2 +- 3 4
    8·1 answer
  • At Camp Sunshine, 4 kids went home sick. Of the remaining campers, 18 kids went hiking and the other 41 kids spent the day swimm
    10·2 answers
  • What is 0.48 times 0.4
    12·1 answer
  • 65 ppl are at a movie and if 40% of them purchase sodas, how many ppl is this that have a soda?
    13·2 answers
  • *PLEASE ANSWER* // *CONFUSED*
    13·1 answer
  • Which number has an absolute value that is equal to the absolute value of 32?
    6·1 answer
  • A sweater Nala wants to purchase is $24.95 and there is a sale for 15% off. Nala is in a location that does not tax clothing. Ho
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!