Evaluate the following expression. (? ? ?n, where n is a whole number)
?
?
A. 5 sec 4?
B. - 5 csc 4?
C. 5 csc 4?
D. - 5 sec 4?
E. 5 cot 4?
Answer: C
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Write the equation of the line in slope-intercept form given the slope and the coordinates of the y-intercept.m = 2; (0, 8)
A. y = 2x + 8 B. y = -2x + 8 C. y = -2x - 8 D. y = 2x - 8
Write fraction as decimal number. Use bar notation for repeating decimals.
A. 1.
B. 1.
C. 1.65
D. 1.6
Solve the problem.The outfield wall in a baseball park is in the shape of a quarter circle. If the radius of the circle is 7 feet, how long is the wall? Use 3.14 for ?. Round your answer to the nearest tenth.
A. 5.5 ft B. 22.0 ft C. 9.0 ft D. 11.0 ft
Use Gaussian elimination and matrices to solve the system of linear equations. Write your final augmented matrix in triangular form and then solve for each variable using back substitution.x - y + 4z=152x + z= 3x + 4y + z=-9
A. (3, -3, 0) B. (3, 0, -3) C. (0, -3, 3) D. (0, 3, -3)