Find an equation y = mx + b that models the quantity y after x units of time.A quantity is initially 6 and remains constant.
A. y = 6
B. y = -6x
C. y = 6x
D. y = -6
Answer: A
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Consider the logistic equation. Find the equilibrium solutions. A detailed direction field is not needed. Assume 
and 
P'(t) = 0.1P
A. P = 0 and P = 900 B. P = 0 and P = 1800 C. P = 1800 D. P = 0 and P = 3600
Use the product rule to simplify the expression. Assume that the variables can be any real number.
A. 3xy
B. -7xy
C. -7xy
D. 7xy
Answer the question or complete the sentence to make a true statement.According to the rules for the order of operations, what should be the first step when simplifying the expression [12 + (-1 + 5)] + (-9)?
A. Find the sum of 5 and -9 B. Find the sum of 12 and -9 C. Find the sum of -1 and 5 D. Find the sum of 12 and -1
Express the sum using summation notation.
- 
+ 
- ... + (-1)(13 + 1) 
13
A. 
k
B. 
k
C. 
D. 
k