X + 10 = -13
-13 - 10 = x
-23 = x
CHECK
-23 + 10 = -13
-13 = -13!
This is not a full question. If you were given the amount at the begining of 1970 (we'll call it x) and the amount at the end of 1980 (we'll call it y), we should solve them accordingly:
y-x=? (calling the answer a)
a/y=%(not answer yet, call this b)
b+100=answer
It's, 1. delivering substances to the cells of the body.
Answer:
I think answer is opction no. 2
Step-by-step explanation:
x = C - 5/2
X^2 + y^2 can be replaced by r^2 to obtain the polar equation equivalent to x^2 + y^2 = 5. Thus, r^2 = 5, and r = sqrt(5). That's all that's necessary. No matter what the angle is, r will always be sqrt(5).