The best answer is A. The possible roots of this polynomial function 9i and -9i. It is possible that this polynomial function is a quadratic equation. It has a degree of two which means there are two roots and it is possible that the positive and negative value of 9i are its roots.
Answer:
15000
Step-by-step explanation:
0.4%=0.004
0.004x=60
x=60/0.004
x=15000
Answer:
C
Step-by-step explanation:
To factorise the quadratic
Consider the factors of the constant term (- 39) which sum to give the coefficient of the x- term (- 10)
The factors are - 13 and + 3, since
- 13 × 3 = - 39 and - 13 + 3 = - 10, hence
x² - 10x - 39 = (x - 13)(x + 3) ← in factored form
x - 13 is a factor → C
Answer:
The correct answer is v(t) = (principal × time × 0.02) if calculated simply and v(t) = Principal × 
where v(t) is the interest after t years .
Step-by-step explanation:
Principal amount invested by Shota is $2000.
Interest is earned at 2% per year.
Time for which the principal is invested is t years.
Therefore let the total interest be v(t) dollars in t years.
Case 1: Simple Interest.
v(t) = (principal × time × 
) = (2000 × t × 0.02) = 40t
Case 2: Compound Interest.
v(t) = Principal × 
- Principal = 2000 × 
- 2000.
8. Not a function because there are multiple x values for a single y value therefore it will not pass the vertical line test making it not a function
9. same as 8
10. Is a function because each y value only has one x value so it would pass the vertical line test that determines it is a function.
