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:
The account will earn in one year the amount of $10,512,000
Step-by-step explanation:
Given as :
The principal in the account = $10,000,000
The rate of interest = 5.12% at simple interest
The time period = 1 years
Let The amount that account earn after 1 year = $A
<u>From Simple interest method</u>
Simple interest = S.I =
or, S.I =
or, S.I =
or, S.I = $512,000
So, Simple interest = S.I = $512,000
Now, Amount = Principal + Interest
I.e A = $10,000,000 + $512,000
Or, A = $10,512,000
So, Amount = A = $10,512,000
Hence The account will earn in one year the amount of $10,512,000 Answer