9514 1404 393
Answer:
C- (14, 4); The vertex represents the maximum profit.
Step-by-step explanation:
The leading coefficient of the quadratic function is negative, so the graph opens downward, and the vertex represents a maximum.
The maximum value is at ...
x = -b/(2a) = -28/(2(-1)) = 14
f(14) = -14^2 +28(14) -192 = 4
The vertex is (14, 4). It represents the maximum profit.
Answer:
A box of oat cereal cost lees than a box of rice cereal cost per ounce.
Step-by-step explanation:
Given:
15 oz of oat cereal cost = $3.90
11 oz of rice cereal cost = $3.30
We need to find the which box of cereal cost less per ounce.
Solution.
First we will find cost of 1 oz of oat cereal.
Now we know that;
15 oz of oat cereal cost = $3.90
1 oz of oat cereal cost = cost of 1 oz of oat cereal.
By Using Unitary method we get;
cost of 1 oz of oat cereal =
Now we will find cost of 1 oz of rice cereal.
Now we know that;
11 oz of rice cereal cost = $3.30
1 oz of rice cereal cost = cost of 1 oz of rice cereal.
By Using Unitary method we get;
cost of 1 oz of rice cereal =
Now from above we can see that cost of 1 oz of oat cereal is $0.26 and cost of 1 oz of rice cereal is $0.3.
Hence we say that, A box of oat cereal cost lees than a box of rice cereal cost per ounce.