Answer:
D one real solution
Step-by-step explanation:
x^2 - 8x + 16 = 0
This is in the form
ax^2 +bx + c = 0
so we can use the discriminant to determine the number of solutions
b^2 -4ac
(-8)^2 -4(1)(16)
64 - 64
0
Since the discriminant is zero, there is one real solution.
0.20 of a cup of sugar is used per cup of water
Answer:
Option D.
Step-by-step explanation:
The given inequality is
.
To graph this inequality, we need to graph the corresponding linear equation;

The intercepts are
and
.
Plot these two points and draw a solid straight line through them.
We then test the inequality with the point (0,0).
.
.
This statement is false.
So we shade the lower half plane to obtain the graph in option D.
Answer:
76, the middle one
Step-by-step explanation: