Use the cofunction identities to find an angle ? that makes the statement true.cot (2? - 20°) = tan (? - 10°)
A. ? = 
B. ? = 40°
C. ? = 10°
D. ? = 
Answer: B
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Find the integral.
A. ln 
+ C
B. ln 
+ C
C. 
+ C
D. ln 
+ C
Solve the problem.A computer science major found that the grade he earned on his programs increased with the time he spent working on them in the computer lab. He made a table of the hours spent in the lab and the corresponding program grades. Let g represent the grade earned when h hours are spent in the lab.
a)Draw a scatterplot for the data.b) Sketch a line that comes close to the data points in the scatterplot. Use your linear model to estimate the program grade when 3 hours are spent in the lab. State whether you used interpolation or extrapolation to obtain your result.
height="150" width="225" /> What will be an ideal response?
Write the number in words.37,508,002
A. thirty-seven million, fifty-eight thousand, twenty B. thirty-seven million, fifty-eight thousand, two C. thirty-seven million, five hundred eight thousand, two D. thirty-seven million, five hundred eight thousand, twenty
Simplify.(x2n + 5)4
A. x8n + 20 B. x6n + 9 C. x8n + 16 D. x6n + 20