Solve and check. Note that the equation could be an identity or a contradiction.11 - 7(5 - s) + 3(s + 4) = 26
A. - 15
B. 
C. - 
D. 
Answer: B
Mathematics
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Factor completely. If the polynomial is prime, state so.243x3y6 - 225x6y3
A. 9x3y3(3y + 5x)(9y2 - 15xy + 25x2) B. 9x3y3(3y - 5x)(9y2 + 15xy + 25x2) C. 9x3y3(27y3 - 25x3) D. 9(3xy2 + 5x2y)(9x2y4 - 15x3y3 + 25x4y2)
Mathematics
Write the vector in the form ai + bj. 
A. 9i + 7j B. -7i + 9j C. 9i - 7j D. 7i + 9j
Mathematics
Solve by graphing.The cost y (in hundreds of dollars) of tuition at one community college is given by the linear equation 
where x is the number of credits for which a student registers. Graph the equation and use the graph to estimate the cost of tuition if a student registers for 15 credits. 
A. $2900 B. $2100 C. $3300 D. $2175
Mathematics
Divide 
if possible, and write the result in simplest form.
A. 
B. 
C. 
D. 
E. not possible
Mathematics