Use the properties of summation notation to find the sum.
A. - 175
B. 145
C. - 145
D. - 163
Answer: A
Mathematics
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Solve the system of equations by Gaussian elimination. If there is an unlimited number of solutions, find two of them.x + y = 3x - y = -2
A. x = 
, y = - 1
B. Inconsistent
C. x = 
, y = 
D. x = 
, y = 
Mathematics
Evaluate the given expression.sin
A. -1
B. 1
C. 
D. - 
Mathematics
A child weighing 22.5 kg has an IV order for vancomycin. Calculate the q8h per dose dosage if the label states that the total daily intravenous dosage is 40 mg/kg of body weight.
A. 300 mg/dose B. 150 mg/dose C. 900 mg/dose D. 112.5 mg/dose
Mathematics
Provide an appropriate response.
4 =
A. 
B. 16x3y8
C. 16x19/4y9/2
D. 16x3y2
E. 16x3/4y1/2
Mathematics