Write the complex number in polar form. Express the argument ? in degrees, with 0 ? ? ? 360°.-4
+ 4i
A. 8(cos(-135°) + i sin(-135°))
B. 8(cos(-45°) + i sin(-45°))
C. 8(cos 135° + i sin 135°)
D. 8(cos 45° + i sin 45°)
Answer: C
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Find the exact or approximate circumference of the circle, as indicated.Find the approximate circumference. Use ? ? 3.14.
A. 16,733.06 mi B. 458.44 mi C. 114.61 mi D. 229.22 mi
Factor completely. If the polynomial cannot be factored, say it is prime.16y2 + 72y - 40
A. 8(2y + 1)(y - 5) B. (16y - 8)(y + 5) C. 8(2y - 1)(y + 5) D. prime
Find the present value P0 of the amount P due t years in the future and invested at interest rate k, compounded continuously.P = $4,000,000, t = 20 yr, k = 5%
A. $10,873,127.31 B. $3,804,917.70 C. $1,480,667.15 D. $1,471,517.76
Use the information given to draw a bar graph. Clearly label the bars. The following table shows the number of visitors at a jazz festival in various years. Make a vertical bar graph to illustrate the data. 
What will be an ideal response?