wahsorad9824 wahsorad9824
  • 03-01-2020
  • Mathematics
contestada

If k = (n + 2)(n – 2), where n is an integer greater than 2, what is the value of k ? (1) k is the product of two primes. (2) k < 100

Respuesta :

nijatibrahimov1993
nijatibrahimov1993 nijatibrahimov1993
  • 04-01-2020

Answer:

The answer is k=77

Step-by-step explanation:

It is given that n is an integer and greater than 2. Let us simplify k = (n + 2)(n – 2) to k=n^2-4.

In (1) it is stated that k is the product of two primes and in (2) it is stated that k<100. To solve the question we need to consider both cases (1) and (2).

Let say n=9 then k=n^2-4 becomes k=81-4=77. Well, 77 is the product of two prime numbers 7 and 11 (77=7*11). The answer is k=77

Answer Link

Otras preguntas

deer : woods : : monkey :
I would like to know if 1 km is greater or less then 999 m
Evaporation: Large amounts of water evaporates from the Earth's ________, _______, __________ every day. The water vapor (evaporation) becomes part of the _____
What was significant about the new habitats Darwin visited?
On a desk there are 6 sheets of blue paper, 4 sheets of yellow paper, 5 sheets of green paper, and 2 sheets of pink paper. In how many ways can the paper be sta
I need to factor 5a^2 + 7a + 6b^2 - 4b  but I can't figure it out.......could it possibly be prime?
3x-150=1778. Help me please I need help bad
The distance between the jones house and the smith house is 96 feet.How many yards is that?
Why is carbon unique among the elements?????
Rick has a collection of 6 video games. He let's his best friend borrow 2/6 of his video game collection. Write two fracations a equivalent to this numbet. Expl