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:
390cm³
Step-by-step explanation:
6cm×5cm×13cm= 30cm²×13cm= 390cm³
Answer: 1:2= 2:4,3:6
Step-by-step explanation: example 5 by 10 0.5
Answer:
2/-3
Step-by-step explanation:
Let's solve your equation step-by-step.
13(8x−5)−4=−3
Step 1: Simplify both sides of the equation.
13(8x−5)−4=−3
(13)(8x)+(13)(−5)+−4=−3 (Distribute)
83x+−53+−4=−3
(83x)+(−53+−4)=−3 (Combine Like Terms)
83x+−173=−3
83x+−173=−3
Step 2: Add 17/3 to both sides.
83x+−173+173=−3+173
83x=83
Step 3: Multiply both sides by 3/8.
(38)*(83x)=(38)*(83)
X = 1
