To find decimal part of 350 and 70 we divide one by the other .
The fraction is 
We can reduce the fraction to its lowest form.

Dividing by common factor 10.
=
Dividing by common factor 7

0.2 is the decimal part of 350 is 70
Answer to the question is 0.2
Answer:
d )is a rational number because it can be written as the fraction 11/20
Step-by-step explanation:
The answer should be 578mi²
First we have to find derivative of f(x):

For x=2 we have:

Now, 
Hence, the answer is A) 2
The missing angles are the one with labels 1, 2, 3, 4.
180 = 43 + 69 + X
180 = 112 + X
X = 68 (1)
180 = 112 + 41 + Y
180 = 153 + Y
Y = 27 (2)
180 = 44 + 66 + Z
180 = 110 + Z
Z = 70 (3)
180 = 109 + 29 + Z
180 = 138 + Z
Z = 42 (4)