Solve the equation.
= 7
A. 
B. 
C. {7}
D. {49}
Answer: C
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Multiply:
Answer the question.Which of the following statements are true if p is a point on the line through a and b?I: p is an affine combination a and b.II: src="https://sciemce.com/media/4/ppg__dsa0521192031__f1q46g6.jpg" style="vertical-align: -4.0px;" />] is 0.
A. II
B. I and III
C. I and II
D. None are true.
, 
, and 
are linearly independent.III: The determinant of [
Set up the linear programming problem.An office manager is buying used filing cabinets. Small file cabinets cost $4 each and large file cabinets cost $11 each, and the manager cannot spend more than $98 on file cabinets. A small cabinet takes up 6 square feet of floor space and a large cabinet takes up 10 square feet, and the office has no more than 108 square feet of floor space available for file cabinets. The manager must buy at least 6 file cabinets in order to get free delivery. Let x = the number of small file cabinets bought and y = the number of large file cabinets bought. Write a system of inequalities that describes these constraints.
A. 4x + 11y ? 98 6x + 10y ? 108 x + y ? 6 B. 4x + 11y ? 98 6x + 10y ? 108 y ? 6 C. 4x + 11y ? 98 10x + 6y ? 108 x ? 6 D. 4x + 11y ? 98 6x + 10y ? 108 x + y ? 6
Find the centroid of the region bounded by the graphs of the given equations.
