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
saul85 [17]
2 years ago
14

N is a positive integer explain why n(n-1) must be an even number

Mathematics
1 answer:
kolezko [41]2 years ago
3 0

Answer:

if 'n' is positive and odd then reducing it by one gives you an even; so then you are multiplying and even and an odd which results in an even

if 'n' is positive and even then reducing it by one gives you an odd; so then you are multiplying and even and an odd which results in an even

Step-by-step explanation:

You might be interested in
Can anyone solve part C?​
nlexa [21]

Answer:

y - 7 = 4(x - 35)

Step-by-step explanation:

The fundamental theorem of calculus states that:

\frac{d}{dx} \int\limits^x_a {f(t)} \, dt = f(x).

So using the fundamental theorem of calculus, you can find that h'(x) = f(x).

The question tells you that f(x) is periodic with a period of 8, so f(x) repeats itself every 8 units.

Using this, you can find that the slope of h(x) at x = 35 is the same as the slope of h(x) at x = 3, which is 4.

The slope of h(x) at x = 35 is 4.

Now I have to find the value of h(x) when x = 35. It is the area under f(x) from 0 to 35.

The area underneath f(x) from 0 to 35 is 7. When x = 35, h(x) = 7.

Now use the point-slope formula to write the equation of the tangent line.

The answer is <u>y - 7 = 4(x - 35)</u>

3 0
3 years ago
Read 2 more answers
3. The sum of a number of 2 digits and of the number formed by reversing the digits is 110, and the difference of the digits is
VladimirAG [237]

Answer:

Anahdbd8enduemahehnwkh2vehnsnbvcjuygvvnic

Hinde ko po talaga alam

Step-by-step explanation:

Bcbvcujrirjrhjd26yehfnx

Sorry po talaga

4 0
2 years ago
Find the difference <br><br><br>-2(c + 2.5) - 5(1.2c + 4)​
Vikentia [17]
Answer:
|−∣=7
Explanation:

∣−∣
= |(-2-5)|
= |-2-5|
= | -7|=7
8 0
2 years ago
What number makes the sentence true?<br> 15 – 7 = 3+1
nasty-shy [4]

Answer:

4

Step-by-step explanation:

Although you didn't give me any answers to go with your problem, I am assuming that since 15-7 is 8, and 3 + 1 = 4, the answer should be 4. Now regarding if it is times, it would be x2. Because for times 2 would be 8. Overall the answer should be 4.

3 0
3 years ago
Describe the surface in 3 represented by the equation x + y = 5. This is the set {(x, 5 − x, z)|x , z } which is a vertical plan
KengaRu [80]

treonvty trwqnty ewuit


7 0
3 years ago
Other questions:
  • In how many ways can you receive four cards of the same face value and one card from the other 48 available cards?
    5·1 answer
  • What is the final price of a product that costs $14.30 with an added tax rate of 4%?
    15·1 answer
  • A 4-billion-bushel corn crop brings a price of $2.4/bushel. A commodity broker uses the following rule of thumb: If the crop is
    9·1 answer
  • Choose the product.
    11·1 answer
  • If n distinct planes intersect in a line, and another line L intersects one of theses planes in a single point, what is the leas
    11·1 answer
  • Write the phrase as an expression. Then simplify the expression. 7 plus sum of a number x and 5
    11·2 answers
  • Eggs were $2.05 per dozen on January 1 and $2.00 per dozen on February 1. What percent did the price decrease during January?
    10·1 answer
  • What is the range for the following numbers?<br> 5,1,12,3,4,2,10​
    5·2 answers
  • Grandfath
    9·1 answer
  • The question is x/-2 + 7 = -12. what is x????
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!