The length, with w, and heighth of a box change with time. At a certain instant the dimensions are - 8 m and wh-5 m, and and ware increasing at a rate of 4 m/s while his decreasing at a rate of 6 m/s. At that instant find the rates at which the following quantities are changing. (a) the volume (in m³/s) 1x m² 120 (b) the surface area (in m²/s) m²/s (c) the length of a diagonal in m/s) (Round your answer to two decimal places.) m/s

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
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Author:Bruce Crauder, Benny Evans, Alan Noell
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Chapter2: Graphical And Tabular Analysis
Section2.1: Tables And Trends
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The length, with w, and heighth of a box change with time. At a certain instant the dimensions are - 8 m and wh- 5 m, and and ware increasing at a rate of 4 m/s while his decreasing at a rate of
6 m/s. At that instant find the rates at which the following quantities are changing.
(a) the volume (in m³/s)
120
1x m²/
(b) the surface area (in m³/s)
m²/s
(c) the length of a diagonal (in m/s) (Round your answer to two decimal places.)
m/s
The temperature 7 in a metal ball is inversely proportional to the distance from the center of the ball, which we take to be the origin. The temperature at the point (1, 2, 2) is 130°.
(a) Find the rate of change of Tat (1, 2, 2) in the direction toward the point (4, 5, 3).
(b) Show that at any point in the ball the direction of greatest increase in temperature is given by a vector that points towards the origin.
Find equations of the following.
2(x - 6)² + (y - 5)² + (z- 5)² = 10, (7,7,7)
(a) the tangent plane
(b) the normal line
(x(t), y(t), z(t))
= √
Transcribed Image Text:The length, with w, and heighth of a box change with time. At a certain instant the dimensions are - 8 m and wh- 5 m, and and ware increasing at a rate of 4 m/s while his decreasing at a rate of 6 m/s. At that instant find the rates at which the following quantities are changing. (a) the volume (in m³/s) 120 1x m²/ (b) the surface area (in m³/s) m²/s (c) the length of a diagonal (in m/s) (Round your answer to two decimal places.) m/s The temperature 7 in a metal ball is inversely proportional to the distance from the center of the ball, which we take to be the origin. The temperature at the point (1, 2, 2) is 130°. (a) Find the rate of change of Tat (1, 2, 2) in the direction toward the point (4, 5, 3). (b) Show that at any point in the ball the direction of greatest increase in temperature is given by a vector that points towards the origin. Find equations of the following. 2(x - 6)² + (y - 5)² + (z- 5)² = 10, (7,7,7) (a) the tangent plane (b) the normal line (x(t), y(t), z(t)) = √
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