Answer:
f^-1(x)=³√[(x+7)÷4]
Step-by-step explanation:
f(x)=4x^3-7
y=4x^3-7
interchange 'y' with 'x'
x=4y^3-7
make y the subject
4y^3=x+7
divide by 4 both sides
y^3=(x+7)÷4
multiply by the cube root both sides
³√(y^3)=³√[(x+7)÷4]
y=³√[(x+7)÷4]
f^-1(x)=³√[(x+7)÷4]
Answer:
(a) $782.00
(b) $218.00
Step-by-step explanation:
(a)_
Total before VAT:
$367.00 + $313.00 = $680.00
15% VAT on $680:
15% of $680.00 = 0.15 × $680 = $102.00
Total after VAT:
$680.00 + $102.00 = $782.00
(b)
$1000.00 - $782.00 = $218.00
So 14 is 2 times 7 or 1 times 14 so the factors are
1,2 7,14
Answer:
(-∞, ∞).
Step-by-step explanation:
This function can have any real value.
Range = (-∞, ∞).