Answer:
Step-by-step explanation:
Answer:
There are two real roots because b²>4ac
in the equation, b²= 9² = 81.
4ac = 4×-4×-12= 72
Answer:
B
Step-by-step explanation:
the reason this because vertically opposite angles the equal so it's also 72
Area of a prism would 1/2xBxHxL
If prism B is twice twice the Height, then compared to A the area of B would be..
1/2xBx(2H)xL.. so prism B would have twice the volume of A.
Hope this helps
Answer:
21
Step-by-step explanation:
solve g(-3)
2(-3)^2 + 7
25
solve f(25)
25-4
21
