Find the angle between u and v in radians.u = 9i, v = 9i - 2j
A. 1.56
B. 1.35
C. 0.22
D. 1.06
Answer: C
Mathematics
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Multiply.
2
A. s2 - 
s + 
B. s2 - 
s + 
C. s2 - 8s + 16
D. s2 - 
s + 
Mathematics
Simplify by using the order of operations. Round your answer to the nearest hundredth.5.8 + (10.8 - 4.5) ? 9.2
A. 63.76 B. -46.40 C. 111.32 D. 100.66
Mathematics
Find the exact value.Given that sin ? = - 
with ? in quadrant IV, find sin 2?.
A. 
B. - 
C. 
D. - 
Mathematics
Provide an appropriate response.Approximately 4 × 103 employees of a certain company average $30,000 each year in salary. What is the total amount earned by all the employees of this company per year? Write your answer in scientific notation.
A. $1.2 × 109 B. $1.2 × 108 C. $12 × 108 D. $12 × 109
Mathematics