Answer:

Step-by-step explanation:
Given Equation:
y=? at x= 1
Putting the given value of 'x' in the equation:

At
, the value of y is 
Answer:
10
Step-by-step explanation:
set up a ratio problem
6 feet/15 long shad= x/25 shad
15x = 150
x = 10
Answer:
Minimum unit cost = 5,858
Step-by-step explanation:
Given the function : C(x)=x^2−520x+73458
To find the minimum unit cost :
Take the derivative of C(x) with respect to x
dC/dx = 2x - 520
Set = 0
2x - 520
2x = 520
x = 260
To minimize unit cost, 260 engines must be produced
Hence, minimum unit cost will be :
C(x)=x^2−520x+73458
Put x = 260
C(260) = 260^2−520(260) + 73458
= 5,858
3miles/ 28 minutes times 42 minutes is equal to 4.5 miles.
Therefore, Eric run 4.5 miles in 42 minutes.
Hopefully this helps!