Perform the indicated row operations on the following matrix. 
(-2)R1 + R2 ? R2
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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For the initial value problem, compute the first two approximations u1 and u2 given by Euler's method using the given time step.y'(t) = 6y, y(0) = 2; ?t = 0.5
A. u1 = 2; u2 = 8 B. u1 = 14; u2 = 56 C. u1 = 8; u2 = 56 D. u1 = 8; u2 = 32
Mathematics
Simplify by writing the expression using only positive exponents.-2-1n3
A. - 
B. - 
C. -2n3
D. - 
Mathematics
Find the natural number b that makes the expression a perfect square trinomial.25x2 - 70x + b
A. 1225 B. 49 C. 35 D. 7
Mathematics
Find the root if it is a real number.
A. 3 B. -9 C. -3 D. Not a real number
Mathematics