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
Marizza181 [45]
2 years ago
7

Someone help me please!

Mathematics
1 answer:
andriy [413]2 years ago
5 0

Answer:

To solve the first inequality, you need to subtract 6 from both sides of the inequality, to obtain 4n≤12. This can then be cancelled down to n≤3 by dividing both sides by 4. To solve the second inequality, we first need to eliminate the fraction by multiplying both sides of the inequality by the denominator, obtaining 5n>n^2+4. Since this inequality involves a quadratic expression, we need to convert it into the form of an^2+bn+c<0 before attempting to solve it. In this case, we subtract 5n from both sides of the inequality to obtain n^2-5n+4<0. The next step is to factorise this inequality. To factorise we must find two numbers that can be added to obtain -5 and that can be multiplied to obtain 4. Quick mental mathematics will tell you that these two numbers are -4 and -1 (for inequalities that are more difficult to factorise mentally, you can just use the quadratic equation that can be found in your data booklet) so we can write the inequality as (n-4)(n-1)<0. For inequalities where the co-efficient of n^2 is positive and the the inequality is <0, the range of n must be between the two values of n whereby the factorised expresion equals zero, which are n=1 and n=4. Therefore, the solution is 1<n<4 and we can check this by substituting in n=3, which satisfies the inequality since (3-4)(3-1)=-2<0. Since n is an integer, the expressions n≤3 and n<4 are the same. Therefore, we can write the final answer as either 1<n<4, or n>1 and n≤3.

You might be interested in
How many solutions does x^4+2x^3-4x^2+x=0
nadezda [96]

Answer:

5

Step-by-step explanation:

no matter how many times you try you can get 5

6 0
2 years ago
Evaluate.<br><br><br><br> 2⋅((42)−1)
Nana76 [90]

Answer:

Hi there!

Your answer is:

<em />

<em>Question was unclear! See below for answer possibilities!</em>

Step-by-step explanation:

<u>IF "-1" MEANS MULTIPLY BY NEGATIVE 1</u>

2((42) -1 ))

2(-42)

<h2><em>-84</em></h2>

<u>IF "-1" MEANS SUBTRACT 1</u>

2((42)-1)

2(41)

<h2><em>82</em></h2>

Hope this helps

5 0
3 years ago
Based on executing the test in Question 5, what would you conclude, given a margin of error of 5%? Group of answer choices We re
Harman [31]

People often draw hypothesis in research.  Based on executing the test in Question 5, We reject the null hypothesis; the mean delivery time is different for every day of the week.

<h3>Why do we reject the null hypothesis?</h3>

Note that if the p-value of an experiment (Like the one above) is less than or found to be equal to the significance level of your test, one can reject the null hypothesis.

By that, we known that the data is in favors the alternative hypothesis. Hence the results gotten by you are statistically significant. If your p-value is found to be greater than your significance level, you then fail to reject the null hypothesis.

Learn more about hypothesis from

brainly.com/question/11555274

8 0
2 years ago
What is the slope of a line with the points (1,-2) and (-6,7)
vichka [17]

Answer: -7,9

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Simplify by combining like terms.
Sphinxa [80]

Answer:Rewrite the expression substituting 5 for the x and simplify. Substitute for x and Simplify. 5(5). Answer. 25. -10. Expression a. 5x = b. -2x = C. X + 25 = d. 5x - 15 = e.

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • anthony bought an 8 foot board.He cut off 3/4 of the board to build a shelf,and gave 1/3 of the rest to his brother for an art p
    5·2 answers
  • Ralph Jordan recently bought a new lawnmower for $228. if he paid 6% sale tax on the lawnmower,what was the total cost of the la
    5·2 answers
  • What is the experimental probability of rolling a number less than 3?
    7·1 answer
  • Can someone help me plz
    10·1 answer
  • Solve The Following System of equations by graphing<br><br>3x + y = 5<br>x - 4y = 32​
    6·1 answer
  • Which of the following transformations map figure S to figure T?
    15·1 answer
  • Which set of numbers may represent the sides of a triangle
    12·1 answer
  • I bet I will mark you as a brainiest if u get this right
    10·1 answer
  • How do i do this? geometry
    14·1 answer
  • A, B &amp; C form the vertices of a triangle.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!