Estimate the answer by rounding as indicated.Estimate by first rounding to the nearest hundred.9501 ÷ 511
A. 23
B. 17
C. 20
D. 19
Answer: D
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Graph the equation.x = -2
A. 
B. 
C. 
D. 
Perform the indicated operation. Express your answer in simplest form.3
- 2
A. 
B. 5
C. 
D. 1
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 74 in. and weight is 80 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. 8.05 mg to 9.66 mg B. 12.82 mg to 15.39 mg C. 20.44 mg to 24.52 mg D. 204.37 mg to 245.25 mg
Express as a single logarithm and, if possible, simplify.ln (x2 - 16) - ln (x + 4)
A. ln (x - 16) B. ln (x - 4) C. ln (x + 4) D. ln (x2 - 4)