All categories

3 years ago

Find the multiplicative inverse of -2 in mod 7

Mathematics

1 answer:

Elis [28]3 years ago

6 0

Answer:

So something mod 7 is -2
Lets consider what mod does as a commands: If you have 7 and then mod it by 2 ie 7%2 you get 1
Essentially mod is seeing how many times a # goes into the other number and finding the remainder.
In this case we want the remainder of 2: -8%3 =-2
note there is also a mathematical procedural way to solve this.
Rate positively and give brainlist

You might be interested in

The ceiling of Katie’s living room is a square that is 15 ft long on each side. To decorate for a party, she plans to hang crepe

goldfiish [28.3K]

I think that 3 rolls is wrong and that 6 rolls is right. If you create a 15 by 15 square and draw two lines through the center that connect to the opposite corner, you'll be able to use the Pythagorean Theorem.

Perimeter: 15+15+15+15=60ft.

Length of Line from Corner to Corner:

(15)(15)+(15)(15)=C^2

225+225=C^2

450=C^2

21.2=C

21.2(2)= 42.4ft.

42.4ft.+60ft.= 102.4ft.

102.4ft. divided by 20ft. = 5.12 = 6 rolls

8 0

3 years ago

4x-4=4x + ___ What is the answer

irakobra [83]

Answer:

-4

Step-by-step explanation:

4x - 4 = 4x + ?

-4

4x - 4 = 4x + (-4) ---> 4x - 4 = 4x - 4

done

7 0

3 years ago

Read 2 more answers

What is the y-value when x equals 25? y= 650 - 15(x)

yarga [219]

Answer:

y= 275 when x is 25

5 0

3 years ago

What is the square root of 24? show your steps.

yawa3891 [41]

Step-by-step explanation:

√24= √(2×2×2×3)

=2√2×3

=2√6

8 0

3 years ago

Can someone help me please i need to get this right

mixer [17]

Answer:

If there are 2 quarters for every 3 nickels,

then there are $45*\frac{2}{3} =30$ quarters.

If there are 2 dimes for every quarter,

then there are $30*2=60$ dimes.

If the number of pennies and nickels together are equal to the number of dimes, then there are $60-45=15$ pennies.

6 0

2 years ago

Find the multiplicative inverse of -2 in mod 7​

Find the multiplicative inverse of -2 in mod 7