Find the value of the indicated trigonometric function of the angle ? in the figure. Rationalize the denominator where necessary.
Find csc ?.
A. 
B. 
C. 
D. 
Answer: A
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Use the LCD to simplify and solve.- 
x - 
= 
- 
A. 
B. 
C. 
D. 
Solve the problem.The following data represents the normal monthly precipitation for a certain city in California. 
Draw a scatter diagram of the data for one period. Find a sinusoidal function of the form 
that fits the data. Draw the sinusoidal function on the scatter diagram. Use a graphing utility to find the sinusoidal function of best fit. Draw the sinusoidal function of best fit on the scatter diagram.
What will be an ideal response?
Solve.A school has just purchased new computer equipment for 
The graph shows the depreciation of the equipment over 5 years. The point (0, 19,000) represents the purchase price and the point (5, 0) represents when the equipment will be replaced. Write a linear equation in slope-intercept form that relates the value of the equipment, y, to years after purchase x . Use the equation to predict the value of the equipment after 4 years.
A. y = - 19,000x + 19,000; value after 4 years is $-57,000.00 B. y = 19,000x + 5; value after 4 years is $3,800.00 C. y = - 3800x + 19,000; value after 4 years is $3,800.00; D. y = 3800x - 19,000; value after 4 years is $3,800.00
Solve the SSA triangle. Indicate whether the given measurements result in no triangle, one triangle, or two triangles. Solve the resulting triangle. Round angle measures to the nearest degree and lengths to the nearest tenth when necessary.B = 80°, b = 4, c = 7
A. B = 40°, A = 60°, a = 11 B. C = 41°, A = 59°, a = 15 C. No triangle exists. D. C = 39°, A = 61°, a = 13