Solve.x2 = 81
A. 40.5
B. -9, 9
C. -10, 10
D. 9
Answer: B
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The spectroscopic parallax of a star is the difference between the apparent magnitude, which is the brightness of light from the star reaching Earth, and the absolute magnitude, which is the intrinsic brightness. The spectroscopic parallax S can be used to calculate the distance d, in parsecs, from Earth to the star. The relationship is
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A: Find the spectroscopic parallax of a star that is 10.96 parsecs from Earth.B: Find the distance from Earth of a star that has a spectroscopic parallax of 5.C: Star A is 5 times as far from Earth as star B. How do their spectroscopic parallaxes compare?
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Round your answer to two decimal places if necessary.
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What will be an ideal response?
Find all local extreme values of the given function and identify each as a local maximum, local minimum, or saddle point.
A. f(8, 0) = -4, local minimum; f(0, 8) = -4, local minimum B. f(8, 8) = 8188, local maximum C. f(0, 0) = -4, saddle point; f(8, 8) = 8188, local maximum D. f(0, 0) = -4, test is inconclusive
Find the expression.v = -4i + 8j; Find 
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A. 32
B. 32i
C. -32
D. 32
Graph the system of linear inequalities. Tell whether the graph is bounded or unbounded, and label the corner points.
A. bounded;
corner points (0, 0), (0, 3), (3, 0)
B. unbounded;
corner points (0, 3), (6, 0)
C. bounded;
corner points (3, 0), (0, 3), (6, 0)
D. unbounded;
corner points (0, 3), (3, 0)