Determine whether the given point is a solution of the equation.3x - 3y = 15; (2, 3)
A. No
B. Yes
Answer: A
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Find projv u.v = i + j + k, u = 4i + 12j + 3k
A. 
i + 
j + 
k
B. 
i + 
j + 
k
C. 
i + 
j + 
k
D. 
i + 
j + 
k
Write the vector v in the form ai + bj, given its magnitude 
and the angle ? it makes with the positive x-axis.
= 9, ? = 225°
A. v = 9
B. v = 9
C. v = 9
D. v = 9
Solve.It is recommended that there be at least 9.2 square feet of floor space in a classroom for every student in the class. Find the minimum floor space that 19 students require. Round to the nearest tenth if necessary.
A. 48.4 square feet B. 174.8 square feet C. 206.5 square feet D. 9.2 square feet
Lymnozyme cures most infections in Koi fish caused by bacteria; in fact, it has been shown to be 98% effective if used according to the directions. If 11 Koi with a bacterial infection are treated, what is the probability that 10 of the fish are cured? ?
A. 0.1788 B. 0.1798 C. 0.1973 D. 0.9481 E. 0.1767