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
Dominik [7]
3 years ago
11

Simone and Harper go canoeing. Simone sees 12 storks.

Mathematics
1 answer:
stira [4]3 years ago
3 0

Answer:

3

Step-by-step explanation:

12/4=3

You might be interested in
Suppose that a cylinder has a radius of r units, and that the height of the cylinder is also r units. The lateral area of the cy
horrorfan [7]

Answer:

r = 7.33 units

Step-by-step explanation:

Given that,

A cylinder has a radius of r units, and that the height of the cylinder is also r units.

The lateral area of the cylinder is 338 square units.

We need to find the value of r.

The formula for the lateral area of the cylinder is given by :

A=2\pi rh

Put all the values,

2\pi r^2=338\\\\r=\sqrt{\dfrac{338}{2\pi}} \\\\r=7.33\ unit

So, the value of r is equal to 7.33 units.

6 0
2 years ago
Bones Brothers & Associates prepare individual tax returns. Over prior years, Bones Brothers have maintained careful records
madreJ [45]

Answer:

For this case we have the following info related to the time to prepare a return

\mu =90 , \sigma =14

And we select a sample size =49>30 and we are interested in determine the standard deviation for the sample mean. From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And the standard deviation would be:

\sigma_{\bar X} =\frac{14}{\sqrt{49}}= 2

And the best answer would be

b. 2 minutes

Step-by-step explanation:

Previous concepts

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".  

The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".

Solution to the problem

For this case we have the following info related to the time to prepare a return

\mu =90 , \sigma =14

And we select a sample size =49>30 and we are interested in determine the standard deviation for the sample mean. From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And the standard deviation would be:

\sigma_{\bar X} =\frac{14}{\sqrt{49}}= 2

And the best answer would be

b. 2 minutes

3 0
3 years ago
How many numbers lie between the squares of 39 and 40
Amiraneli [1.4K]

Answer:

i guess its 1...

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Create an equation with one solution of x = −4.
katen-ka-za [31]

Answer:

What is missing is -5x - 20

Step-by-step explanation:

To find this, simply solve for the parenthesis as if it were a variable of its own. This will allow you to see exactly what is missing.

8x - (x - 20) = 2x - (_______)

8x - x + 20 = 2x - (_______)

7x + 20 = 2x - (_______)

5x + 20 = - (_______)

-5x - 20 = (_______)

So the answer for the parenthesis is -5x - 20

3 0
3 years ago
Given two points (2, 7) and (1, -2) on a line, calculate the slope of the line.
Kipish [7]

Answer:

Step-by-step explanation:

Slope of line passing through (2, 7) and (1, -2) = (-2-7)/(1-2) = 9

7 0
2 years ago
Other questions:
  • Rewrite as a simplified fraction<br> 2.267 = ?
    10·2 answers
  • August hosted two dinner parties for his friends. Twenty guests attended the first party, and twenty-eight guests attended the s
    14·1 answer
  • 16z – 5z<br> A. 11z<br> B. 21<br> C. 21z<br> D. -11z
    9·1 answer
  • One year, Super Bowl commercial time sold for $4.5 million for 30 seconds of air time.
    13·1 answer
  • The work of a student to find the dimensions of a rectangle of area 8 + 16x and width 4 is shown below:
    13·1 answer
  • The rate of change in the function Y = 2X +5 is the rate of change of the function represented in the table
    6·1 answer
  • You have 2.35 add 1 and then multiply by 4
    15·2 answers
  • Select the format which represents proportional relationship.
    14·2 answers
  • An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such tha
    14·1 answer
  • Please help me and look at what I’m struggling with
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!