Find the cos 43.5°
What will be an ideal response?
0.7254
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Write a chain rule formula for the following derivative.
for w = f(p, q, r); p = g(t), q = h(t), r = k(t)
A. 
= 
+ 
+ 
B. 
= 
+ 
+ 
C. 
= 
+ 
+ 
D. 
= 
+ 
+ 
Solve the problem.A certain radioactive isotope decays at a rate of 2% per 200 years. If t represents time in years and y represents the amount of the isotope left, use the condition that 
to find the value of k in the equation 
A. -0.02020 B. 0.00010 C. 0.01332 D. -0.00010
Solve the problem.Write an equation to calculate the number of words (w) which can be typed in a certain amount of time (t) at an average rate (r) of x words per minute. If Mark's typing speed is 80 words per minute, how many words can he type in 45 minutes?
A. w = r + t; w = 125 words B. w = rt; w = 3600 words C. w = rt; w = 3500 words D. w = rt; w = 3610 words
The graph of a function f is given. Use the graph to answer the question.Use the graph of f given below to find f(-12).
A. 0 B. -12 C. -8 D. 20