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
emmainna [20.7K]
3 years ago
15

The price of a technology stock was $9.72 yesterday. Today, the price rose to $9.85 . Find the percentage increase. Round your a

nswer to the nearest tenth of a percent.
Mathematics
2 answers:
Zigmanuir [339]3 years ago
6 0

The increase in the percentage would be
$9.77 -$9.64 =0.130.13/9.64=x/100
cross n time(0.13*100)=9.64x    13/9.64 = x            1.35=x
Aleksandr-060686 [28]3 years ago
3 0
-1.31979695431% Round to nearest tenth its 1.3%
You might be interested in
How many commuters must be randomly selected to estimate the mean driving time of Chicago commuters? We want 90% confidence that
BlackZzzverrR [31]

Answer:

n=(\frac{1.640(12)}{4})^2 =24.206 \approx 25

So the answer for this case would be n=25 rounded up to the nearest integer

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

The margin of error is given by this formula:

ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}    (a)

And on this case we have that ME =4 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

n=(\frac{z_{\alpha/2} \sigma}{ME})^2   (b)

The critical value for 90% of confidence interval now can be founded using the normal distribution. And in excel we can use this formla to find it:"=-NORM.INV(0.05;0;1)", and we got z_{\alpha/2}=1.640, replacing into formula (b) we got:

n=(\frac{1.640(12)}{4})^2 =24.206 \approx 25

So the answer for this case would be n=25 rounded up to the nearest integer

3 0
3 years ago
Read 2 more answers
39) Natural numbers that have 1 as the common number between them are called?
Arlecino [84]

Answer:

I think they're called The Prime numbers.

Tell me if it's correct

8 0
3 years ago
Read 2 more answers
What makes a unique triangle a unique triangle?
Neko [114]
Unique Triangles<span> are </span>Triangles<span> that do not have an equivalent. This means there is not another </span>triangle<span> that has the exact dimensions or shape. </span>
3 0
3 years ago
A pudding recipe for 50 people calls for 4 cups of suger. Each bag contains 6 cups of suger how many bags of suger will be neede
Mashutka [201]

Answer:

4 bags

Step-by-step explanation:

50 people = 4 cups

300 people = 24 cups

24 cups ÷ 6 cups a bag = 4 bags

5 0
2 years ago
What is a cell.................. ​
vredina [299]

Answer:

The smallest structral and function unit of an organism

Step-by-step explanation:

no explanation

5 0
2 years ago
Read 2 more answers
Other questions:
  • Anna and Belle are asked to solve −2x − 15 = 6x + 9. Identify where one of them made an error.
    15·1 answer
  • How to do fraction ?
    5·2 answers
  • Helpppppp me plssss ​
    7·1 answer
  • A submarine’s depth at 10:00 a.m. was ( -200ft). At noon, it descended an additional 500 feet. What was the submarine’s depth at
    10·2 answers
  • The measures of a triangle in the extended ratio 2:3:4.What is the measure of the smallest angle?
    7·2 answers
  • Write the equation of the line that passes<br> through the point (-6, 1) and has a slope<br> of 1/2
    7·1 answer
  • 1.How to find perfect squares
    15·1 answer
  • How many times can 50 go into 250? Correct=brainliest
    9·1 answer
  • Clay puts $50 on his bus pass. Every time he rides the bus, $3.00 is deducted from his pass. How much money is left on his pass
    10·1 answer
  • If R(x) and S(x) are inverse functions, which statement must be true?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!