Establish the identity.
- 
= 4 cot u csc u
What will be an ideal response?
- 
= 
= 
= 
= 
? 
= 4 cot u csc u
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Find the value of the expression.- 
- 
A. -19 B. -23 C. 23 D. 19
Graph.
+ 
= 1
A. 
B. 
C. 
D. 
Solve the problem.At the end of the day, a storekeeper had $1070 in the cash register, including both the sale of goods and the sales tax of 7%. What amount of sales tax had been collected?
A. $75 B. $70 C. $65 D. $60
Solve the problem using your calculator.A study was conducted to compare the average time spent in the lab each week versus course grade for computer students. The results are recorded in the table below. Use a graphing calculator to model the data with a linear function that predicts a student's course grade as a function of the number of hours spent in lab. Number of hours spent in lab Grade (percent) 10 96 11 51 16 62 9 58 7 89 15 81 16 46 10 51
A. y = 44.3 + 0.930x B. y = 0.930 + 44.3x C. y = 88.6 - 1.86x D. y = 1.86 + 88.6x