Answer:
cos(49) = x/50
Step-by-step explanation:
(The answer to the equation is 32.8)
Using the given data you can build the linear regression (described by linear function y=ax+b) by hand or you can use math calculator to do this. In attached diagram you can see that

and

Then the equation of linear function is

Answer: correct choice is D.
Answer:
27.5 inches
Step-by-step explanation:
(68.1+11.2+x)/3=35.6
68.1+11.2+x=106.8
79.3+x=106.8
x=27.5
Answer:1/6
Step-by-step explanation:
Step-by-step explanation:
m=-2
m^2+9m+3
substitute-2 in m
-2^2+9(-2)+3
= -19