Use Descartes' Rule of Signs to determine the possible number of positive and negative real zeros for the function. Then, use a graph to determine the actual number of positive and negative real zeros.P(x) = x5 + x4 + x2 + x + 5
A. possible: 0 pos, 1 neg
actual: 0 pos, 1 neg
B. possible: 0 pos, 2 or 0 neg
actual: 1 pos, 0 neg
C. possible: 0 pos, 1 or 3 neg
actual: 0 pos, 1 neg
D. possible: 1 or 3 pos, 0 neg
actual: 1 pos, 0 neg
Answer: C
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Express the integrand as a sum of partial fractions and evaluate the integral.
dx
A. ln 
+ 
ln 
+ tan-1 
+ C
B. 4 ln 
- 
ln 
- tan-1 x + C
C. 4 ln 
+ 
ln 
+ 
tan-1 
+ C
D. 4 ln 
+ 
ln 
+ sin-1 
+ C
Provide an appropriate response.A big-box store advertised dehumidifiers for 30% off the MSRP. The sale price is $139.00. The original price was $198.57.
A. True B. False
Subtract.299 - 55
A. 344 B. 234 C. 244 D. 256
Use a calculator to find the approximate value. Express your answer in degrees rounded to two decimal places.cos-1 (0.45)
A. 53.49° B. 24.23° C. 26.74° D. 63.26°