Use a compass and straight edge to construct a 22.5° angle
What will be an ideal response?
Compass marks should look approximately like those in the following diagram.
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Solve the problem.The area A = ?r2 of a circular oil spill changes with the radius. At what rate does the area change with respect to the radius when 
A. 81? ft2/ft B. 9? ft2/ft C. 18 ft2/ft D. 18? ft2/ft
Determine if the sequence is geometric. If the sequence is geometric, find the common ratio.4, -12, 36, -108, 324, . . .
A. yes, 12
B. yes, - 
C. no
D. yes, -3
Write the complex number in rectangular form using exact values if possible. Otherwise, round to one decimal place.3(cos 225° + i sin 225°)
A. 
+ 
i
B. 
+ 
i
C. 
+ 
i
D. 
+ 
i
Provide an appropriate response.Given a payment of $800 per quarter for five years, use a graphing calculator to graph the present value A as a function of the interest rate per quarter r. Determine the nominal interest rate if the present value of the annuity is $14,000.
Fill in the blank(s) with the appropriate word(s).