To further justify the Cofunction Theorem, use your calculator to find a value for each pair of trigonometric functions below. In each case, the trigonometric functions are cofunctions of one another, and the angles are complementary angles. Round your answers to four places past the decimal point.
?
sin 28° = _____ , cos 62° = _____
What will be an ideal response?
0.4695; 0.4695
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The following table is generated from a linear function 
. Fill in the missing data points. Be careful: The data are not evenly spaced. Round your answer to two decimal places, if necessary.
x 3 10 15 23 y 16.37 90.77
What will be an ideal response?
Provide an appropriate response.
Find tan A as a fraction in lowest terms if a = 9, b = 12, and c = 15. 
A. 
B. 
C. 
D. 
Determine if the function f defined by the arrow diagram has an inverse. If it does, create an arrow diagram that defines the inverse. If not, explain why not.
A. No; the function is not one-to-one.
B. Yes;
Assume that the manufacturer’s suggested retail price of a car is $31,000 and its residual value is 50%. The purchaser leases the car for 26 months and negotiates a price of $29,100. Find the monthly lease payment of the car if he made a $2,500 down payment, the annual interest rate is 3.6%, and there is no trade-in.
a. $450.57 b. $490.07 c. $98.73 d. $529.46