Determine whether the ordered pair is a solution of the given equation.(3, 7); x - y = 9
A. Yes
B. No
Answer: B
Mathematics
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Find the triple scalar product (u x v) ? w of the given vectors.u = i + j + j; v = 9i + 4j + 8k; w = 5i + 9j + 6k
A. 27 B. -1 C. 103 D. -123
Mathematics
Tell which integer corresponds to the situation.$4081 out of debt
A. -4081 B. 4081
Mathematics
Add. Do not use a number line except as a check.-2.4 + (-7.1)
A. 9.5 B. -9.5 C. -4.7 D. 4.7
Mathematics
Solve the problem.The amount of particulate matter left in solution during a filtering process is given by the equation 
where n is the number of filtering steps. Find the amounts left for 
and 
(Round to the nearest whole number.)
A. 800 units; 6400 units B. 1600 units; 100 units C. 800 units; 25 units D. 800 units; 100 units
Mathematics