Y =3x+13---------#
-4x+3y=19-------*
subsititute value of y in equation *
-4x+3(3x+13)=19
-4x+9x+39=19
5x=-20
x=-20/5
x= -4
Answer:
Step-by-step explanation:
1. -3.2a≤8 you are dividing the 8/-3.2 you get -2.5 flip your sign to get
a≥-2.5 solid line on -2.5 and go to the right.
2. 2>n+.8 minus .8 from both sides n<1.2 open circle on 1.2 and go to the left
3. b-4.2>=-5 b≥ -0.8 solid line on -0.8 and go to the right
4. false
5. r≤0.1
6. y≤0.8
You get the idea or need more help?
Answer:
Ok
Step-by-step explanation:
X^2 + X -30
(X+6) (X-5) = 0
X=-6 , X= +5
for example, +6 X -5 = -30
Answer:
Yes
Step-by-step explanation: In order to build a triangle, the 2 smaller numbers must equal or be bigger than the largest number. 7+5 = 12 which is bigger than 11
