Perform the indicated conversion between American and metric units of length.2.8 feet to centimeters (Round to the nearest tenth.)
A. 110.2
B. 85.4
C. 71.1
D. 7.1
Answer: B
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Solve the system of equations using the inverse of the coefficient matrix.2x + y + 4z - w = 15 -x + 2y + z - 3w = 17 2x + 4y + 2z + w = 9 4x - y - z - 3w = 0
A. No solution B. x = -3, y = 3, z = 4, w = -5 C. x = -1, y = 2, z = 3, w = -3 D. x = -1, y = -2, z = -3, w = 3
Solve the system using the inverse method.
A. x = -3, y = 1 B. x = 3, y = -1 C. x = 1, y = -3 D. x = -1, y = 3
Use the Chain Rule to differentiate the function. You may need to apply the rule more than once.f(x) = 
A. f'(x) = 
(2x - (x2 - x + 1)6)-4/5[2 - 6(x2 - x + 1)5]
B. f'(x) = 
(2x - (x2 - x + 1)6)-4/5[2 - 6(x2 - x + 1)5(2x - 1)]
C. f'(x) = 
(2x - (x2 - x + 1)6)4/5[2 - 6(x2 - x + 1)5(2x - 1)]
D. f'(x) = 
(2x - (x2 - x + 1)6)4/5[2 - 6(x2 - x + 1)5]
Find the equation of the least-squares line for the given data. Draw a scatter diagram for the given data and graph the least-squares line.
