Use the given triangles to evaluate the expression. Rationalize all denominators. 
cos 
A. 
B. 
C. 
D. 
Answer: C
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Find an equation for the described linear function.Through 
and perpendicular to 
A. y = 8x - 
B. y = 8x + 
C. y = 
x + 
D. y = -8x + 
The percent of a certain brand of computer chips that will fail after t years of use is estimated to be 
.
?
What percent of this brand of computer chips are expected to be usable after 6 years? Round your answer to one decimal place.
?
__________%
Fill in the blank(s) with the appropriate word(s).
Provide an appropriate response.It is estimated that service industries will grow at the rate of R'(t) = 5e1/(t+1) where t is the time in decades and R(t) is the percent of (non-farming) workers who are employed in the service industry. If 30 percent of the (non-farming) workers are now in the service industry, then use Simpson's rule and n = 4 to approximate 30 + 
the percentage of workers who are working in the service industry in 2 decades.
Fill in the blank(s) with the appropriate word(s).
Simplify the expression. Assume that all variables are positive.(4x4y4)1/2
A. 2x2y2 B. 2x2y C. 2x4y2 D. x2y2