Answer:
Elimination
Step-by-step explanation:
You would not do substitution since it would not work so you do elimination since the 4y and -4y eliminate then you just solve for it.
Answer:
b
Step-by-step explanation:
Step-by-step explanation:
Combine common terms
(3x²+5x²)+(7x-4x)+(-5+11)
8x²+3x+6
I don't know about how to put that in standard form, but an equation has to have an equals sign... So, that would be an equation.
Answer:
Step-by-step explanation:
a) Volume of prism: 6 units x 4 units x 7 units = 168 cubic units
b) Area of shaded base: 4 units x 7 units = 28 square units
Volume of prism: 6 x 4 x 7