Answer:
Step-by-step explanation:
0.9*2b = 1.8b
0.9*-1 = -0.9
So far we have 1.8b-0.9. It can't be simplified further.
Then, we add the 2nd part, -0.5b+1.
We have:
1.8b-0.9-0.5b+1. Next we combine like terms.
1.8b-0.5b = 1.3b.
-0.9+1 = 0.1
Then we put it together.
1.3b+0.1 is our answer.
Hope this helped! Have a nice day :D
Answer:
48
Step-by-step explanation:
x = -2 y =3
3x² - 2xy²
3(-2)² -2(-2)(3)²
square first
3*4 -2(-2)*9
multiplty from left to right
12-2(-2)*9
multiply from left to right again
12 -(-36) subtract using rule for integers that double minus is plus
12 + 36
48
Answer:
First triangle: 
, second triangle: 
Step-by-step explanation:
In the first triangle, the value of 
is equal to the following trigonometric relation:
In the second triangle, we obtain the value of 
is equal to the following trigonometric relation:
You first need to get x on one side, so you first subtract 35 from both sides, and you get
-4x < 2
then you divide by -4 on both sides, so you get
x < -0.5
(i hope this is correct)
