This is a square matrix whose entries are real and rows and columns are orthogonal unit vectors.

Actually Welcome to the concept of expo functions.
f(x) = -8(2)^x - 12 ,
for f(0) ,here substitute x = 0
so we get as ,
==> f(0) = -8(2)^0 -12
==> f(0) = -8-12
==> f(0) = -20
hence, f(0) = -20
Answer:
3.1782437e+42
Step-by-step explanation:
1.) 3/4
2.) It snowed 1/4 more on Tuesday than it did on Monday.
Answer:
d>200
Step-by-step explanation:
if the distance (d) is greater (>) than 200 then he will not eat it.
Hope this helps <3