Select a linear combination of the standard unit vectors i and j of given initial and terminal points of a vector..
?
Initial Point
Terminal Point
(0, -8)
?(9, 12)
?
?
A. ?9i + 20j
B. ?-9i - 20j
C. ?20i - 9j
D. ??20i + 9j
E. ?9i - 20j
Answer: A
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Assume that the expressions given are denominators of fractions. Find the least common denominator. 6y + 42, y2 - 49, y
A. y(y + 7)(y - 7) B. 42y(y2 + 7)(y2 - 7) C. 6y(y + 7)(y - 7) D. 42y(y + 7)2(y - 7)
Answer the question.If we apply the quadratic formula and find that the value of b2 - 4ac is positive, what can we conclude about the solutions?
A. The equation has exactly one rational solution. B. The equation has no real number solutions. C. The equation has two real number solutions. D. The equation has two irrational solutions.
Translate the given formula to an English phrase using the word "varies".f = 
, where f is the centripetal force of an object of mass m moving along a circle of radius r at velocity v
What will be an ideal response?
Subtract.8 - 6
A. 14 B. 1 C. 2 D. 3