Answer:
The correct option is C.
Step-by-step explanation:
The given cubic equation is

According to the rational root theorem 1 and -1 are possible rational roots of all polynomial.
At x=-1, the value of function 0. Therefore (x+1) is the factor of polynomial and -1 is a real root.
Use synthetic division to find the remaining polynomial.


Using 

USe zero product property and equate each factor equal to 0.

Therefore the equation have three real roots out of which the value of two roots are same.
Option C is correct.
The equation for C in terms of t,t, representing the total cost of the gym membership over tt months is C = 150 + 50t
<h3>Equation</h3>
There are three basic types of equation in mathematics. Namely:
- Linear equations
- Quadratic equations
- Simultaneous equations
- Monthly fee = $50
- One-time joining fee = $150
- Total cost = C
- Number of months = t
C = 150 + 50t
Therefore, the equation for C in terms of t,t, representing the total cost of the gym membership over tt months is C = 150 + 50t
Learn more about equations:
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11 x 9 is 99 so then you do 11 x d and that’s 11d so it would be 99+11d :)
Answer:
B
Step-by-step explanation:
Simple interest is based on the principal amount of a loan or deposit.