Express the indicated roots of unity in standard form a + bi.Ninth roots of unity
A. 1 + 0i
cos 
+ i sin 
? 0.77 + 0.64 i
cos 
+ i sin 
? 0.17 + 0.98 i
cos 
+ i sin 
= - 0.50 + i 
-1 + 0i
cos 
+ i sin 
? - 0.94 - 0.34 i
cos 
+ i sin 
= - 0.50 - i 
cos 
+ i sin 
? 0.17 - 0.98 i
cos 
+ i sin 
? 0.77 - 0.64 i
B. 1 + 0i
cos 
+ i sin 
? 0.77 + 0.64 i
cos 
+ i sin 
? 0.17 + 0.98 i
cos 
+ i sin 
= - 0.50 + i 
cos 
+ i sin 
? - 0.94 + 0.34 i
cos 
+ i sin 
? - 0.94 - 0.34 i
cos 
+ i sin 
= - 0.50 - i 
cos 
+ i sin 
? 0.17 - 0.98 i
cos 
+ i sin 
? 0.77 - 0.64 i
C. 1 + 0i
cos 
+ i sin 
? 0.77 + 0.64 i
cos 
+ i sin 
? 0.17 + 0.98 i
cos 
+ i sin 
= - 0.50 + i 
cos 
+ i sin 
? - 0.94 + 0.34 i
cos 
+ i sin 
? - 0.94 - 0.34 i
cos 
+ i sin 
= - 0.50 - i 
cos 
+ i sin 
? 0.17 - 0.98 i
1 - i
D. 1 + 0i
cos 
+ i sin 
? 0.94 + 0.34 i
cos 
+ i sin 
? 0.77 + 0.64 i
cos 
+ i sin 
= 0.50 + i 
cos 
+ i sin 
? 0.17 + 0.98 i
cos 
+ i sin 
? - 0.17 + 0.98 i
cos 
+ i sin 
= - 0.50 + i 
cos 
+ i sin 
? - 0.77 + 0.64 i
cos 
+ i sin 
? - 0.94 + 0.34 i
Answer: B
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A. True B. False
Determine whether the statement is true or false.The number 
is not an irrational number.
A. True B. False
Solve.Jim has a 3-year car lease that allows him to buy the car at the end of the lease for 
plus 14 cents a mile for each mile the car is driven over 30,000 miles. If at the end of the lease the mileage on Jim's car is 34,500.5 miles, how much will it cost Jim to buy the car?
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Solve. 11n – 5 = 6n – 10
A) x = –5 B) x = –1 C) x = –10 D) x = 15 E) x = 5