Answer:
see explanation
Step-by-step explanation:
The value of the discriminant informs about the nature of the roots of a quadratic function.
The discriminant Δ = b² - 4ac
• If b² - 4ac > 0, then roots are real and distinct
• If b² - 4ac = 0, then roots are real and equal
• If b² - 4ac < 0, then the roots are not real
Hence for b² - 4ac = - 8, then roots are not real
Answer:
154 in^3
Step-by-step explanation:
Apparently, the outside diameter is 6 inches, so the outside radius is 3 inches. The inside radius is shorter by the wall thickness, so is 3 -1.25 = 1.75 inches.
The volume formula is ...
V = πr^2·h = π(1.75 in)^2(16 in) ≈ 49π in^3 ≈ 153.94 in^3
The approximate inside volume is 154 cubic inches.
-28=-2x
Divide by negative 2
Your answer: x=14
Answer:
{x,y} = {19/12,5/6}
Step-by-step explanation:
Answer:
B
if f(x-4) then we should put x-4 where the x is spouse to be so;
-2(x-4)-1 =
-2x + 8 - 1 =
-2x + 7