Find the indicated control limits.For a production process for which there is a great deal of data since its last modification, the population mean ? and the population standard deviation ? are assumed known. For such a process we have the following values for an
chart:
(The value A is found in the table of control chart factors).In a chalk-producing factory, after production, the length of six sample pieces of chalk is checked every 15 minutes. For this process, ? = 3.67 in. and ? = 0.12 in. Find the central line, UCL, and LCL for the mean.
A. 3.67, 3.817, 3.523
B. 3.67, 3.806, 3.534
C. 3.67, 3.831, 3.509
D. 3.67, 3.728, 3.612
Answer: A
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When a satellite is near Earth, its orbital trajectory may trace out a hyperbola, a parabola, or an ellipse. The type of trajectory depends on the satellite's velocity V in meters per second. It will be hyperbolic if , parabolic if
, and elliptical if
, where k = 2.82 × 107 is a constant and D is the distance in meters from the satellite to the center of Earth. Solve the problem.If a satellite is scheduled to leave Earth's gravitational influence,
its velocity must be increased so that its trajectory changes from elliptical to hyperbolic. Determine the minimum increase in velocity necessary for a satellite traveling at a velocity of 5696 meters per second to escape Earth's gravitational influence when
A. -3514 m per sec
B. 5627 m per sec
C. 5765 m per sec
D. 7878 m per sec
Determine the quadratic function whose graph is given.
A. f(x) = -x2 + 6x - 5 B. f(x) = x2 + 6x + 5 C. f(x) = -x2 - 6x - 5 D. f(x) = -x2 + 6x + 5
Answer the question.The monomial 49x2y14 is a perfect square.True or False?
A. False. B. True.
Identify any x-intercepts and y-intercepts in the graph respectively.
A. (-5, 0) and (0, 0); (0, -1) B. (-5, 0) and (0, 0); (0, 1) C. (-5, 0) and (1, 0); (0, -1) D. (5, 0) and (1, 0); (0, 1)