Add or subtract. Write the answer in lowest terms.
+ 
- 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the indicated vector.Let u = 
. Find -3u.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A coil of wire rotating in a magnetic field induces a voltage given by 
where t is time in seconds. Find the smallest positive time to produce a voltage of 10
.
A. 3.33? seconds B. 3? seconds C. 3.33 seconds D. 3 seconds
Mathematics
Perform the conversion.15,000 mg = kg
A. 1.5 B. 0.015 C. 0.15 D. 0.0015
Mathematics
The angle ? is an angle in standard position and satisfies the given conditions. Find the indicated trigonometric function value of ?. Do not use a calculator.The terminal side of ? is in quadrant I and lies on the line 
Find 
A. 
B. 
C. 
D. 4
Mathematics