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
poizon [28]
2 years ago
15

3

Mathematics
2 answers:
AleksAgata [21]2 years ago
7 0
The answer is C it is 37%
mrs_skeptik [129]2 years ago
3 0

The Answer is <em>C </em>

<em>Also 37%</em>

You might be interested in
Of 1,050 randomly selected adults, 360 identified themselves as manual laborers, 280 identified themselves as non-manual wage ea
garik1379 [7]

Answer:

We can claim with 95% confidence that the proportion of executives that prefer trucks is between 19.2% and 32.8%.

Step-by-step explanation:

We have a sample of executives, of size n=160, and the proportion that prefer trucks is 26%.

We have to calculate a 95% confidence interval for the proportion.

The sample proportion is p=0.26.

 

The standard error of the proportion is:

\sigma_p=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.26*0.74}{160}}\\\\\\ \sigma_p=\sqrt{0.0012}=0.0347

The critical z-value for a 95% confidence interval is z=1.96.

The margin of error (MOE) can be calculated as:

MOE=z\cdot \sigma_p=1.96 \cdot 0.0347=0.068

Then, the lower and upper bounds of the confidence interval are:

LL=p-z \cdot \sigma_p = 0.26-0.068=0.192\\\\UL=p+z \cdot \sigma_p = 0.26+0.068=0.328

The 95% confidence interval for the population proportion is (0.192, 0.328).

We can claim with 95% confidence that the proportion of executives that prefer trucks is between 19.2% and 32.8%.

3 0
3 years ago
Find the general solution for the differential equation \displaystyle{\left.{d}{y}\right.}+{9}{x}\ {\left.{d}{x}\right.}={0}dy+9
densk [106]

Answer:

y= CC-4.5x^2

Step-by-step explanation:

To find the general solution to the differential equation

dy + 9x dx = 0, we employ the method of separating variable as follows:

Note: { will represent the integral sign here.

Separating the variables and integrating, we have

{dy  = -{9x dx

y = -(9/2)(x^2) + CC,

where CC is the given constant of integration.

This can be rearranged/simplified to yield

y= CC-4.5x^2

6 0
3 years ago
Original price $90 markdown 24%​
Gre4nikov [31]
The markdown will be $21.60. so the final price after the markdown is $68.40.
8 0
3 years ago
There are 3 students to 1 adult on a field trip. You need to find the number of adults needed for 24 students. What would the se
coldgirl [10]

Answer:

a = 24*1/3

a =8  

Step-by-step explanation:

We are using proportions to solve this problem by putting students over adults

students         3                   24

--------------- = ---------------  = -------------

adults                 1                   a

where a is the unknown number of adults

Using cross products

3a=24*1

Divide by 3

a = 24*1/3

a = 24/3

a = 8

5 0
3 years ago
-
jek_recluse [69]
Do you have a picture???
4 0
2 years ago
Other questions:
  • Very important, please help!
    11·1 answer
  • Can someone please help me with this question
    11·2 answers
  • Please help me on these two questions!
    14·1 answer
  • A chessboard has 64 squares. George places 1 grain of rice on the first square, 2 grains on the second square, 4 grains on the t
    11·2 answers
  • Use the Distributive Property to find the price of 9 CDs that cost $13.99 each.
    10·2 answers
  • Hexagon ABCDEF is a regular hexagon. Show that segments AE and ED are perpendicular.
    12·1 answer
  • A bacteria culture has 2,000 bacteria. The number of bacteria increases by 5% each hour. How many bacteria are there after 12 ho
    5·1 answer
  • What is 30% as a fraction
    13·1 answer
  • Select all the names that could be used to describe the figure.
    15·1 answer
  • Not a question but I just wanted to let you know that I hope you find the answer you're looking for! &lt;3
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!