1. 180 - 50 = 130
130 ÷ 2 = 65
2. 20 + 30 = 50
180 - 50 = 130
3. 110 + 35 = 145
180 - 145 = 35
4. 60 + 60 = 120
180 - 120 = 60
Note: All angles of a triangle add up to 180 which is why your subtracting from 180.
Answer:
38
Step-by-step explanation:
first multiply and divide
then addition and subtraction
- 12 + 15 / 3 * 6 - 4 =
- 12 + 5 * 6 - 4 =
- 12 + 30 - 4 =
- 42 - 4 =
- 38
V=lwh
198 = 3(x-1)(x-4)
(x-1)(x-4)=x^2-5x+4
3(x^2-5x+4)
= 3x^2-15x+12
3x^2-15x+12=198
Subtract 198 from both sides
= 3x^2-15x-186
use Quadratic formula <-- google if you forgot it
=10.761355820929152 and a different number which is negative, so reject it
Round it to 10.76
x=10.76
Answer:
-x^2 +12x +5
Step-by-step explanation:
x^2+3x + -2x^2+9x+5
I like to line them vertically
x^2+3x
-2x^2+9x+5
---------------------
-x^2 +12x +5