Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.
A. 54xy10
B. 6xy4
C. 6xy10
D. 6x19y10
Answer: C
Mathematics
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If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the velocity vector.r(t) = (2t2 + 17)i + 
j
A. v = 
i + (4t)j
B. v = (4t)i + 
j
C. v = (4t)i - 
j
D. v = (4)i + 
j
Mathematics
Solve.A solution strength of 5 mg of medicine in 1 mL of solution is available. If a patient needs 8 mg, how many mL do you administer?
A. 1.6 mL B. 8 mL C. 40 mL D. 0.6 mL
Mathematics
Determine whether the statement is true or false.All whole numbers are positive.
A. True B. False
Mathematics
Draw a line that has the given slope and 
Slope - 
; y-intercept (0, 2)
A. 
B. 
C. 
D. 
Mathematics