Q 1.
integers are 11, -4 and 73.
Q 2
5 is an integer and a natural number
Q 3
{9 , 1, 13} Set M
(-2ab + 6a - 6 ) - (-4ab - 6)= ***at this step you have to distribute the negative sign
=-2ab + 6a - 6 +4ab + 6
= 2ab + 6a
hope this helps
Answer:
-19
Step-by-step explanation:
f(x)=5x+1
F(-4) - substitute -4 as the x
F(-4)=5(-4)+1
F(-4) = -20 + 1
f(-4) = -19
Answer:

Step-by-step explanation:
![\theta \in [\frac{\pi}{2}; \pi]\\cos(\theta) = \frac{-1}{5}](https://tex.z-dn.net/?f=%5Ctheta%20%5Cin%20%5B%5Cfrac%7B%5Cpi%7D%7B2%7D%3B%20%5Cpi%5D%5C%5Ccos%28%5Ctheta%29%20%3D%20%5Cfrac%7B-1%7D%7B5%7D)
By the Fundamental Theorem of Trigonometry =>
The positive version for
. And the negative for 
Meaning sin is positive in the problem => 
7.6875 is the answer rounded is 8 for a whole number!