Solve the problem.Determine whether (2, 8, -3) is a solution of the system 3x - 4y - 2z = -20 4x + y - z = 19 x - 2y + 3z = -23.
A. No
B. Yes
Answer: B
Mathematics
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Solve.8 ? 3t + 2 ? 26
A. 2 < t < 8 B. -8 ? t ? -2 C. -8 < t < -2 D. 2 ? t ? 8
Mathematics
Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. 256? B. 64? C. 128? D. 8?
Mathematics
Solve the problem.In a two-card hand, what is the probability of holding two cards of the same suit?
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A balloon (in the shape of a sphere) is being inflated. The radius is increasing at a rate of 4 cm per second. Find a function, r(t), for the radius in terms of t. Find a function, V(r), for the volume of the balloon in terms of r. Find (V ? r)(t).
A. (V ? r)(t) = 
B. (V ? r)(t) = 
C. (V ? r)(t) = 
D. (V ? r)(t) = 
Mathematics