Simplify the expression.
(-20) - 7
A. -15
B. - 
C. - 
D. 1
Answer: A
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Write the function in the form y = f(u) and u = g(x). Then find dy/dx as a function of x.y = cot(5x - 7)
A. y = 5u - 7; u = cot x; 
= - 5 cot x csc2 x
B. y = cot u; u = 5x - 7; 
= - 5 cot(5x - 7) csc(5x - 7)
C. y = cot u; u = 5x - 7; 
= - 5 csc2(5x - 7)
D. y = cot u; u = 5x - 7; 
= - csc2(5x - 7)
A population is modeled by the function
.
For what value of N is the population growing at the fastest rate? Round your answer to two decimal places, if necessary.
?
A. 
B. 
C. 
D. 
The wolf population in a certain northern region is estimated to be
?
?
in month 
, and the caribou population in the same region is given by
?
?
Find the rate of change of each population when 
. Round your answers to the nearest integer.
?
__________ wolves/mo
?
__________ caribou/mo
What will be an ideal response?
Substitute to find the value of the expression.In one store, bananas cost 60 cents per pound. The cost, in dollars, of x pounds of bananas is 0.6x. What is the cost of 1.2 pounds of bananas?
A. $2.00 B. $0.72 C. $0.20 D. $0.92