Evaluate the requested trigonometric function using the information given. cos ? = 
; 3?/2 < ? < 2?Find sin ?.
A. - 
B. - 
C. -3
D. - 
Answer: D
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The table below shows nation health care costs H, in billions of dollars, t years after 1970. t 0 10 20 30 40 H 76 258 717 1,403 2,650? A: Use exponential regression to model H as a function of t. Round your answer to two decimal places.B: Plot the exponential model along with the data points.C: According to the exponential model, when will national health care costs reach 4342.00 billion dollars? Report your answer as a year rounded to the nearest whole number.
What will be an ideal response?
Use a double-angle identity to find the exact value of the expression.1 - 2 sin2 67.5°
A. - 
B. 
C. 
D. - 
Determine whether or not the function is one-to-one.f(x) = |9 - x2|
A. Yes B. No
Solve the equation.10y = 5y + 5 + 4y
A. {5} B. {-50} C. {50} D. {-5}