Provide an appropriate response.The mail carrier brings you six bills for $11 each. Are you richer or poorer? by how much?
A. Poorer by $220; 6 ? (-11) = -220
B. Poorer by $66; 6 ? (-11) = -66
C. Richer by $66; 6 ? 11 = 66
D. Richer by $220; 6 ? 11 = 220
Answer: B
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Find all cube roots of the complex number. Leave answers in trigonometric form.-6
- 6i
A. 
cis 70°, 
cis 190°, 
cis 310°
B. 
cis 70°, 
cis 190°, 
cis 310°
C. 
cis 70°, 
cis 190°, 
cis 310°
D. 
cis 80°, 
cis 200°, 
cis 320°
Provide an appropriate response.The only consecutive whole numbers that are both prime numbers are 
and 
.
A. 2 and 3 B. 1 and 2 C. 0 and 1 D. 6 and 7
Find the direction angles of the vector. Round to the nearest degree, if necessary.v = 4i + 12j - 6k
A. ? = 72°, ? = 19°, ? = 118° B. ? = 89°, ? = 86°, ? = 92° C. ? = 72°, ? = 23°, ? = 117° D. ? = 73°, ? = 31°, ? = 115°
Provide an appropriate response.Find the double integral over the rectangular region R with the given boundaries.
for R: 0 ? x ? 2, - 1 ? y ? 1
A. 6
B. 
C. 8
D. 