Establish the identity.sec2 
= 
What will be an ideal response?
sec2 
= 
= 
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Solve the problem and answer the question.A painter can finish painting a house in 8 hours. Her assistant takes 10 hours to finish the same job. How long would it take for them to complete the job if they were working together?
A. 4
hr
B. 
hr
C. 9 hr
D. 7 hr
Factor completely. If unfactorable, indicate that the polynomial is prime.r2 - 10r + 25
A. (r - 10)(r + 10) B. (r - 5)2 C. (r + 5)(r - 5) D. (r + 5)2
Graph the function f by starting with the graph of y = x2 and using transformations (shifting, compressing, stretching, and/or reflection).f(x) = 5x2 - 10x + 8 
A. 
B. 
C. 
D. 
Solve the problem.Midtown Delivery Service delivers packages which cost $1.30 per package to deliver. The fixed cost to run the delivery truck is $435 per day. If the company charges $6.30 per package, how many packages must be delivered daily to make a profit of 
?
A. 87 packages B. 334 packages C. 107 packages D. 57 packages