Answer:
It's B :)
Step-by-step explanation:
Answer:
(2, - 3 )
Step-by-step explanation:
Given the 2 equations
y = - 3x + 3 → (2)
y = - 9x + 15 → (2)
Substitute y = - 3x + 3 into (2)
- 3x + 3 = - 9x + 15 ( add 9x to both sides )
6x + 3 = 15 ( subtract 3 from both sides )
6x = 12 ( divide both sides by 6 )
x = 2
Substitute x = 2 into either of the 2 equations and solve for y
Substituting into (1)
y = - 3(2) + 3 = - 6 + 3 = - 3
solution is (2, - 3 )
Answer:
228
Step-by-step explanation:
We are adding 3 each time so general rule is
Tn= 3n + 3
Therefore
T= 3(75)+3
= 228
Answer:
64
Step-by-step explanation:
(3x+5)^2 = ax^2 +bx+c
FOIL the left side
(3x+5) (3x+5)
9x^2 +15x+15x+25
Combine like terms
9x^2 +30x+25
a=9
b= 30
c= 25
a+b+c = 9+30+25 = 64
