The vector v has initial position P and terminal point Q. Write v in the form ai + bj; that is, find its position vector.P = (-2, 6); Q = (3, 2)
A. v = 4i - 3j
B. v = -4i + 5j
C. v = 5i - 4j
D. v = -3i + 4j
Answer: C
Mathematics
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Solve. Round to the nearest hundredth, if necessary.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 245 seconds are required to make a 5-by-7 enlargement, find the time required for a 7-by-9 enlargement.
A. 378 sec B. 567 sec C. 441 sec D. 504 sec
Mathematics
Find an equation of the hyperbola.x-intercept 5; center at origin; passing through (5
, 6)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
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Graph the inequality.x + y < -3
A. 
B. 
C. 
D. 
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Use the graph to find the equation of the circle.
A. x2 + y2 = 16 B. (x - 3)2 + (y - 2)2 = 16 C. (x - 3)2 + (y - 2)2 = 4 D. (x + 3)2 + (y + 2)2 = 16
Mathematics