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
Mumz [18]
2 years ago
14

Find the lowest common multiple of 15 and 12

Mathematics
1 answer:
Zigmanuir [339]2 years ago
5 0

Answer:

its 60

Step-by-step explanation:

You might be interested in
(1.02)
AVprozaik [17]

Answer:

-14

Step-by-step explanation:

3r2-5s+6t

3.2.2-5(-4)+6.(-1)

12-20-6

12-26

-14

7 0
2 years ago
Read 2 more answers
According to the norms established for a reading comprehension test, eighth-graders should average 83.2 with a standard deviatio
joja [24]

Answer:

t=\frac{86.7-83.2}{\frac{8.6}{\sqrt{45}}}=2.73    

p_v =P(t_{44}>2.73)=0.0045    

If we compare the p value and a significance level given \alpha=0.01 we see that p_v so we can conclude that we have enough evidence to reject the null hypothesis, so we can conclude that the population mean is signficantly higher than 83.2 at 1% of significance.

Step-by-step explanation:

Data given and notation    

\bar X=86.7 represent the average life for the sample    

s=8.6 represent the population standard deviation    

n=45 sample size    

\mu_o =83.2 represent the value that we want to test    

\alpha=0.01 represent the significance level for the hypothesis test.    

t would represent the statistic (variable of interest)    

p_v represent the p value for the test (variable of interest)    

State the null and alternative hypotheses.    

We need to apply a two tailed  test.  

What are H0 and Ha for this study?    

Null hypothesis:  \mu \leq 83.2  

Alternative hypothesis :\mu > 83.2  

Compute the test statistic  

The statistic for this case is given by:  

t=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}} (1)    

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".    

Calculate the statistic    

We can replace in formula (1) the info given like this:    

t=\frac{86.7-83.2}{\frac{8.6}{\sqrt{45}}}=2.73    

Give the appropriate conclusion for the test  

First we need to calculate the degrees of freedom given by:

df=n-1=45-1=44

Since is a one side right tailed test the p value would be:    

p_v =P(t_{44}>2.73)=0.0045    

Conclusion    

If we compare the p value and a significance level given \alpha=0.01 we see that p_v so we can conclude that we have enough evidence to reject the null hypothesis, so we can conclude that the population mean is signficantly higher than 83.2 at 1% of significance.

8 0
2 years ago
An oblique prism has a base area of 3x2 square units.
Yuri [45]

Answer:

36x²

Step-by-step explanation:

i just did it on edge 2020

7 0
3 years ago
Read 2 more answers
3. Look for a pattern to determine the next two numbers in the list. Show your work. (5 points)
EleoNora [17]

Answer:

The sequence is subtracting 12 each time. The next two numbers would be 152, and 140

Step-by-step explanation:

3 0
3 years ago
Select the correct text In the table.
Yuri [45]

Answer:

-9-958

216

Step-by-step explanation:

add

3 0
2 years ago
Other questions:
  • 1. If the length of a rectangle is decreased by 4 cm and the width is increased by 5 cm, the result will be a square, the area o
    6·1 answer
  • What is the arc length of a circle that has a 6-inch radius and a central angle that is 65 degrees? Use 3. 14 for pi and round y
    5·1 answer
  • If f(x) = 5x – 1, then f^-1(x)=
    12·1 answer
  • What is the perimeter of this triangle ⬆️​
    14·1 answer
  • What is 9 divided by 1,215?
    13·1 answer
  • At what point does the graph of 5x + 4y = 12 intersect the y-axis?
    13·1 answer
  • Compare the areas. What is the ratio of the areas? SHOW YOUR WORK
    6·1 answer
  • D. Mrs. Buchanan decided to throw her daughter a sweet sixteen party. She rented a room at a local venue for $500 a night plus $
    5·1 answer
  • Please solve this math problem... I will mark you brainliest
    5·1 answer
  • What is (-2,6) and ( 5,13) in slope
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!