Write the equation of the line passing through the given pair of points.
?
?
and 
?
A. ?
B. ?
C.
D.
E.
Answer: B
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Solve the problem.A model that describes the free fall of an object in a gravitational field subject to air resistance uses the equation where v(t) is the velocity of the object, for
is the acceleration due to gravity, and
is a constant that involve the mass of the object and the air resistance. Let
src="https://sciemce.com/media/4/ppg__wesa0610191635__f1q76g5.jpg" alt="" style="vertical-align: -4.0px;" /> For what initial values are solutions increasing? decreasing? What is the equilibrium solution?
A. increasing for A < 19.6 and decreasing for A > 19.6; v(t) = 19.6
B. increasing for A > 19.6 and decreasing for A < 19.6; v(t) = 0
C. increasing for A < 19.6 and decreasing for A > 19.6; v(t) = 0
D. increasing for A > 19.6 and decreasing for A < 19.6; v(t) = 19.6
Find the distance between the two vectors.u = (-8, -1), v = (1, -8)
A.
B. 65
C. 130
D.
Write the decimal in words.2.84
A. two and eighty-four hundredths B. two and eighty-four thousandths C. two and eighty-four tenths D. two and eighty-four millionths
A new firm loses $1,600 in its first month, but its profit increases by $400 in each succeeding month for the rest of its first year. What is its profit in the twelfth month? ?
A. $6,800 B. $2,800 C. $3,200 D. $6,000 E. $4,400