Write the number in standard form.7(cos 150° + i sin 150°)
A. 
+ 
i
B. 
- 
i
C. 
- 
i
D. 
+ 
i
Answer: A
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The maximum length of a certain fish is 21 inches. Each year the difference D, in inches, between its maximum length and its current length L, in inches, decreases by 12%. The initial difference is 19 inches.
?
A: Find a formula that gives the length difference D after ?t years.
?
B: The length difference is 
. Find a formula that gives its length after t months.
?
C: When will the fish reach 17 inches long? Round your answer to two decimal places if necessary.
?
What will be an ideal response?
Use l'Hopital's Rule to evaluate the limit.
A. 
B. 
C. 0
D. - 
Solve the problem.Use the following information to graph the function f over the closed interval [-5, 6].i) The graph of f is made of closed line segments joined end to end.ii) The graph starts at the point (-5, 1).iii) The derivative of f is the step function in the figure shown here.
A. 
B. 
C. 
D. 
Use the rules for exponents to rewrite the expression and then evaluate the new expression. (72)-1
A. 
B. - 
C. -14
D. -49