Use a sum or difference identity to find the exact value.sin (285°)
A. 
B. 
C. - 
D. 
Answer: C
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Solve the problem.Find the finance charge per $100 for a loan of $4500 with a finance charge of $1080.
A. $25 B. $24 C. $23 D. $4.17
Solve the problem.An object is spinning around a circle with a radius of 20 centimeters. If in 17 seconds a central angle of 
has been covered, what is the linear speed of the object?
A. 
cm per sec
B. 
cm per sec
C. 20 cm per sec
D. 
cm per sec
Use a graphing calculator and the method of matrix inverses to solve the system. Give five decimal places, if necessary.(log 2)x + (ln 3)y+ (ln 5)z = 4(ln 3)x + (log 8)y + (ln 10)z = 11(log 23)x + (ln 7)y + (ln 4)z = 15
A. ? B. {(4.12321, 3.91519, 1.27440)} C. {(9.25474, 1.35236, -0.16880)} D. {(0.30103, 9.0309, 1.38629)}
Solve the following systems of linear equations using Gaussian elimination.
x + 2y + 2z = 7 6x + 11y + 9z = 35 x + y - 2z = -3