Provide an appropriate response.A student knows that 
= 38. Can 
be found, and if so, what is it?
A. No
B. Yes, -38
Answer: A
Mathematics
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Provide an appropriate response.Can the sample variance ever be a negative number? If so, for what types of data? If not, why not? Can the sample variance ever be zero? If so, for what types of data? If not, why not? Explain your reasoning.
What will be an ideal response?
Mathematics
Find the equation of the curve for the given slope and point through which it passes.Slope given by -4x/y; passes through (0, -4)
A. y2 = -4x2 + 16 B. y2 = 4x2 + 16 C. y2 = -4x2 + 4 D. y2 = -4x2 - 16
Mathematics
Find the value of ? in the interval [0°, 360°) that satisfies the given conditions.cos ? = - 
and ? in quadrant III
A. 120° B. 150° C. 240° D. 210°
Mathematics
Find the exact value of the expression or state that it does not exist.sin
A. 
B. 
C. - 
D. - 
Mathematics