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
Otrada [13]
3 years ago
12

1.5 units

Mathematics
1 answer:
scoray [572]3 years ago
3 0

Answer:

3 units

Step-by-step explanation:

There are 3 squares between them.

You might be interested in
-3-(-8)-(-2)=x, what is the value of x?
loris [4]
- 3 - (- 8) - (- 2) = x

Distribute the negatives to the numbers in the parentheses.

- 3 + 8 + 2
- 3 + 10
7

x = 7
3 0
3 years ago
Read 2 more answers
What is the correct answer to the equation
zubka84 [21]

Answer:

right answer is 8cm

Step-by-step explanation:

if QM=x

so. Om=32+x

ON=64+16=80

(32+x)/x=80/16

32+x=5x

4x=32

x=8

6 0
3 years ago
1. If a - b = 4 and a + b = 12, what is the<br> value of a?
Marta_Voda [28]
A=8

Explanation: a+b=12 a-b=4
^^^^^^^ ^^^^^^
8+4=12 8-4=4
A=8
8 0
3 years ago
Suppose that a researcher is designing a survey to estimate the proportion of adults in your state who oppose a proposed law tha
irinina [24]

Answer:

n=\frac{0.5 (1-0.5)}{(\frac{0.02}{1.96})^2}= 2401

So without prior estimation for the population proportion, using a confidence level of 95% if we want a margin of error about 2% we need al least a sample size of 2401.

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".  

The population proportion have the following distribution  

p \sim N(p,\sqrt{\frac{\hat p(1-\hat p)}{n}})  

Solution to the problem

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}} (a)  

If solve n from equation (a) we got:  

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2} (b)  

The margin of error desired for this case is ME= \pm 0.02 equivalent to 2% points

For this case we need to assume a confidence level, let's assume 95%. And since we don't have prior estimation for the population proportion of interest the best value to do an approximation is \hat p =0.5

In order to find the critical value we need to take in count that we are finding the margin of error for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by \alpha=1-0.95=0.05 and \alpha/2 =0.025. And the critical value would be given by:  

z_{\alpha/2}=\pm 1.96  

Now we have all the values needed and if we replace into equation (b) we got:

n=\frac{0.5 (1-0.5)}{(\frac{0.02}{1.96})^2}= 2401

So without prior estimation for the population proportion, using a confidence level of 95% if we want a margin of error about 2% we need al least a sample size of 2401.

5 0
3 years ago
What is 457×(783×635)​
Hoochie [10]

Answer:

227222685 i cant tell if u want me to multiply them all or solve for X

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which equation can be used to find one of the missing side lengths in the triangle?
    15·1 answer
  • Can anyone answer this for me?
    11·2 answers
  • 3 oranges cost $p. Find the cost of the 47 oranges in terms of p.
    6·1 answer
  • (please explain how you got your answer, thank you)
    12·1 answer
  • 1. Owen’s parents were planning a birthday party for him. They have $20.00 to spend on goodie bags. They need to buy 6 goodie ba
    13·2 answers
  • 4. Write an expression equivalent to<br> -3 + 2/3y - 4 - 1/3y
    5·2 answers
  • Identify the transformation(s) where the image has the same orientation as the preimage
    8·1 answer
  • You are purchasing carpeting for an office building. The space to be carpeted is 30 feet by 50 feet. Company A charges $2.99 per
    9·1 answer
  • (Please help)select the number line that represents all solutions of…
    15·1 answer
  • Lana does yard work. The information below shows the approximate time for each job:
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!