Answer:
Option B. f¯¹(x) = ³√(– x – 9)
Step-by-step explanation:
From the question given above:
f(x) = – x³ – 9
f¯¹(x) =?
We can obtain the inverse f¯¹(x) of the above equation by doing the following:
f(x) = – x³ – 9
Replace f(x) with y
y = – x³ – 9
Interchange x and y
x = – y³ – 9
Make y the subject . This is illustrated below:
x = – y³ – 9
Rearrange
x + 9 = – y³
Multiply through by –1
–(x + 9) = y³
y³ = – x – 9
Take the cube root of both side
y = ³√(– x – 9)
Replace y with f¯¹(x)
f¯¹(x) = ³√(– x – 9)
Thus, the inverse of the function
f(x) = – x³ – 9
is
f¯¹(x) = ³√(– x – 9)
Step-by-step explanation:
zero ...................
Answer:
250
Step-by-step explanation:
"Fuel economy" = "miles per gallon" = (distance traveled) divided by (gallons used)
mpg = (226 miles) / (10.5 gallons) = <u>21.52 miles per gallon</u> (rounded)
It makes absolutely no difference whether the trip took 4 hours or 4 years.
That information is there just to try and trip you up. You don't need it.
Answer:
$50
Step-by-step explanation:
75x20%= 1500 then divided by 100 is 15. 75 - 15 is 50