Simplify the given expression by giving the results in terms of one-half the given angle. Then use a calculator to verify the result.
A. 0.809
B. -0.5878
C. 0.891
D. 0.454
Answer: D
Mathematics
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Use quadratic regression to model the following data. Round your answers to two decimal places, if necessary. x 1.44 3.11 5.43 6.87 8.15 y 7.93 3.65 4.41 6.14 8.77?
A. ?
B. 
C. ?
D. ?
Mathematics
Replace the polar equation with an equivalent Cartesian equation.r = -9 csc ?
A. y = -9 B. x = -9 C. -9y = 1 D. -9x = 1
Mathematics
Solve the problem.Assume that the seed square of the Sierpinski carpet has area A = 8. Find the area of the "carpet" obtained in Step 2 of the construction.
A. 
B. 
C. 
D. 
E. 
Mathematics
Use graphing calculator to find the inverse of the matrix. Give 5 decimal places.A = 
A. 
B. 
C. 
D. 
Mathematics