Find dy/dt.y = cos4(?t - 15)
A. -4? cos3(?t - 15) sin(?t - 15)
B. -4 cos3(?t - 15) sin(?t - 15)
C. 4 cos3(?t - 15)
D. -4? sin3(?t - 15)
Answer: A
You might also like to view...
Solve the equation by completing the square.x2 + 16x = -43
A. {8 - 
, 8 + 
}
B. {8 + 
}
C. {-8 - 
, -8 + 
}
D. {-16 + 
}
Answer the question.If 7 is substituted for x in the rational expression 
, the result is 
. Mathematicians have been known to say "Any number divided by itself is 1." Does this mean that this expression is equal to 1 for x = 7? Explain why or why not.
What will be an ideal response?
Find the Jacobian of f (x, y) = 
and g (x, y) = cos 
What will be an ideal response?
Solve the problem.The amount of a radioactive substance present, in grams, at time t in months is given by the formula 
Find the number of grams present in 2 years. If necessary, round to three decimal places.
A. 41.012 B. 4.101 C. 5,155.152 D. 515.515