2x - 8 < 12
2x < 12 + 8
2x < 20
x < 20/2
x < 10
Given :
Three roots ,
.
To Find :
A cubic function with the given zeros.
Solution :
Equation of polynomial of 3 zeroes is given by :

Therefore, the cubic function of given zeroes is
.
Hence, this is the required solution.
Answer:
B. CPI
Step-by-step explanation:
Let the cost of the hair dryer equal x.
The net cost plus a 40% markup equals 42, set up an equation and solve forex.
1.4x = 42
Divide both sides by 1.4
X = 42 / 1.4
X = 30
The net cost was £30
Find the future value
A=p (1+r/k)^kt
A=3,200×(1+0.024÷4)^(4×15)
A=4,581.72
interest earned
4,581.72−3,200
=1,381.72