3 years ago

why is there no need to go further than the multiples of 7 when checking if a number less than 100 is prime

1 answer:

5 0

Step-by-step explanation:

because 7 is the highest prime number that when squared is less than 100, 11 yhe next prime number when squared is 121. As such all non-prime numbers less than 100 will be a would have prime factors of either 2, 3, 5 & 7

You might be interested in

I really need the help please and thank you

Umnica [9.8K]

Answer:

B. $f^{-1}(x)=\frac{x-4}{5}$

Step-by-step explanation:

To find the inverse of a function/equation:

Replace f(x) with y: y=5x+4
Switch x and y: x=5y+4
Solve for y: x-4=5y -> $y=\frac{x-4}{5}$
Write in standard inverse notation: $f^{-1}(x)=\frac{x-4}{5}$

I hope this helps!!

gl!

3 0

2 years ago

Solve: -4.878-(-8.96)=

Pepsi [2]

-4.878-(-8.96) can be changed to -4.878 + 8.96 because when you subtract a negative it becomes a positive so the answer would be 4.082 or B

7 0

3 years ago

Read 2 more answers

The perimeter of a square field is 348 yards. How long is each side?

madreJ [45]

Answer:

Step-by-step explanation:

348 divided by 4

8 0

3 years ago

Read 2 more answers

6(840.25)+15(1,374.05)+9(1.222.43)/30

kifflom [539]

Answer:

26018.979

yea...

4 0

3 years ago

5/8 times 12 and also simplified

Mars2501 [29]

0.63x12= 7.5 so the answer is 7.5

7 0

3 years ago

why is there no need to go further than the multiples of 7 when checking if a number less than 100 is prime​

why is there no need to go further than the multiples of 7 when checking if a number less than 100 is prime