Your answer should be 314
4 x 16=64
10 x 25 (25 is the height)=250
64 + 250=314
Answer:
x²+2x-3=0
According to Vieta's formula:
x²-(Sum of roots)x+(product of roots)=0
Sum of roots=-3+1=-2
Product of roots=-3×1=-3
The equation is x²-(-2)x+(-3)=0
x²+2x-3=0
Answer:
f^-1 (9) = 7 equals f = 9/7
Step-by-step explanation:
f^-1 x 9 = 7, f ≠ 0
1/f x 9 = 7
9/f = 7
9 = 7f
7f = 9
Let the number of units sold be n
Revenue = 65*n
Cost function = 5500 +4*n
Profit function = Revenue - Cost
=65n -(5500+4n)
61n-5500
