One mole of gas expands isothermally to triple its volume. If the gas temperature is 440K, what energy is absorbed? Round to a whole number.
A. 4,067 joules
B. 2,796 joules
C. 483 joules
D. 4,019 joules
E. 152 joules
Answer: D
Mathematics
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Find the coordinates of the vertex of the parabola.x = y2 - 4y + 5
A. (2, 1) B. (1, 2) C. (0, 1) D. (2, 0)
Mathematics
Write the equation of the line whose graph is shown.
A. y = -2x - 5
B. y = 
x + 2
C. y = 
x - 5
D. y = 2x - 5
Mathematics
Solve the equation.
+ 
= 4
A. {2, -2}
B. {
, -2}
C. {-2}
D. {0}
Mathematics
Write the equation of the circle in standard form. Find the center and radius. Then sketch the graph.x2 + y2 + 2x - 48 = 0
A. (x - 1)2 + y2 = 49
(h, k) = (1, 0), r = 7
B. x2 + (y - 1)2 = 49
(h, k) = (0, 1), r = 7
C. (x + 1)2 + y2 = 49
(h, k) = (- 1, 0), r = 7
D. x2 + (y + 1)2 = 49
(h, k) = (0, - 1), r = 7
Mathematics