Answer:
-x : y/2
Step-by-step explanation:
Answer:
The simplified answer is -42x + 21.
Step-by-step explanation:
Distribute the -7. -42x + 21.
Answer:
6
Step-by-step explanation:
The opposite of -3 is 3. Opposite numbers are numbers that when added, sum to 0. The distance between 3 and -3 is |3 - (-3)| = |3 + 3| = |6| = 6.
Answer:
2 sqrt(30)
Step-by-step explanation:
We want to find the norm of the matrix
( -2 6
4 8)
Take the square root of the sum of the squares
sqrt( (-2) ^2 + 6^2 + 4^2 + 8^2)
sqrt( 4+36+16+64)
sqrt( 120)
sqrt( 4*30)
2 sqrt(30)