Find the y-intercepts and any x-intercepts.y = x2 - 10
A. y-intercept (0, -10), x-intercept (
, 0)
B. y-intercept (0, -10), x-intercepts (
, 0) and (-
, 0)
C. y-intercept (0, -10), x-intercepts (0, 
) and (0, -
)
D. y-intercept (0, 10), x-intercepts (
, 0) and (-
, 0)
Answer: B
Mathematics
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Solve the equation by completing the square.
x2 - 
x - 
= 0
A. {2 - 
}
B. {1 + 
}
C. {2 ± 
}
D. {1 ± 
}
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Find the vertex and axis of symmetry of the graph of the function.f(x) = -x2 + 8x
A. (4, 16); x = 4 B. (-4, -16); x = -4 C. (-16, 4); x = -16 D. (16, -4); x = 16
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Determine whether (f(g(x)) = x and whether (g (f(x)) = x.f(x) = 
, g(x) = x5 + 7
A. No, no B. Yes, no C. No, yes D. Yes, yes
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T is Exponential (3).
Find E ( X ), Var ( X ), and SD( X ) for the given random variable
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