Determine the absolute value of the complex number.z = -15 - 2i
A. i
B. i
C. 
D. 
Answer: C
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Find the angle between u and v in radians.u = -2i - 6j, v = 7i + 6j + 8k
A. -0.70 B. 1.58 C. 1.84 D. 2.28
Simplify. Leave your answer in exponent form.(3a)3
A. 9a B. 27a C. 27a3 D. 9a3
Find the greatest common factor of the terms.64a10b3, 56a6b10
A. 448a10b10 B. 4a4b7 C. 8a6b3 D. 8a10b10
Body surface area (BSA) is often used to calculate dosages for some drugs. BSA is calculated in square meters using a person's weight and height.BSA = 
Suppose an adult whose height is 70 in. and weight is 60 kg is to receive a drug that has a recommended dosage range of 10-12 mg per square meter. Find the dosage range for this adult. Round to the nearest hundredth, if necessary.
A. 172.14 mg to 206.57 mg B. 10.8 mg to 12.96 mg C. 6.78 mg to 8.13 mg D. 17.21 mg to 20.66 mg