The norm of a vector 
is equal to the square root of the inner product of with itself.
a. 
b. 
Answer:
3 dogs
Step-by-step explanation:
Idk if the 5 dog was supposed to have a s but if not its 5 btw that's really sad
What you have to do is multiply 21 by 2. it is 42. $42 dollars was the original price of the bookcase.
There are many ways a problem can be simplified. You can divide by the GCF (Greatest Common Factor) or even factor which depending on where you are in math you may or may not have learned. For your problem, I will use the first method.
3m-8 can be multiplied by any term (keep it simple):
2(3m-8) = 6m-16
4(3m-8) = 12m-32
Your answers should be 6m-16 and 12m-32.
I think you mean to find b in terms of the constants a, c and d.
(x + a ) / b - c = d
(x + a) / b = c + d
Cross multily:-
x + a = b(c + d)
b = (x + a) / (c + d)
